[SCM] GNU Inetutils branch, master, updated. inetutils-1_9

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[SCM] GNU Inetutils branch, master, updated. inetutils-1_9_4-117-g91141

From:	Alfred M. Szmidt
Subject:	[SCM] GNU Inetutils branch, master, updated. inetutils-1_9_4-117-g911413e
Date:	Fri, 1 Jan 2021 05:36:01 -0500 (EST)
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU Inetutils ".

The branch, master has been updated
       via  911413ea570d4494215043ca41908bdaa2d259c5 (commit)
      from  64bf7815e31f14a879c00a9bda8eabc609e807d1 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=911413ea570d4494215043ca41908bdaa2d259c5


commit 911413ea570d4494215043ca41908bdaa2d259c5
Author: Alfred M. Szmidt <ams@gnu.org>
Date:   Fri Jan 1 11:35:27 2021 +0100

    Happy GNU 2021 year!

diff --git a/ChangeLog b/ChangeLog
index eaf4034..9200e75 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16872,7 +16872,9 @@ russion letters.  Thanks to Vladas Lapinskas 
<lapinskas@mail.iae.lt>.
        * syslogd/syslogd/syslogd.c: Include <version.h>.
        (main): Add option -V (version).
 
-    Copyright (C) 1999-2020 Free Software Foundation, Inc.
+    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+    2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+    2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ChangeLog.0 b/ChangeLog.0
index 5fda61c..35ec144 100644
--- a/ChangeLog.0
+++ b/ChangeLog.0
@@ -2021,7 +2021,10 @@ Sat Dec 30 06:36:41 1995  Roland McGrath  
<roland@churchy.gnu.ai.mit.edu>
        * ftpd/ftpcmd.y: Allow `SITE IDLE 0' for non-anonymous user to
        disable idle timer.
 
-    Copyright (C) 1995-2020 Free Software Foundation, Inc.
+    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+    2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+    2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+    Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/Makefile.am b/Makefile.am
index 3553b8e..c1d48dc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/NEWS b/NEWS
index 634ee41..43d6dfd 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,7 @@
 GNU inetutils NEWS -- history of user-visible changes.
-Copyright (C) 1997-2020 Free Software Foundation, Inc.
+Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 See the end of this file for license conditions.
 
 Please send inetutils bug reports to <bug-inetutils@gnu.org>.
diff --git a/README b/README
index b340722..73cf51c 100644
--- a/README
+++ b/README
@@ -127,7 +127,9 @@ Please send all bug reports to <bug-inetutils@gnu.org>.
 
 ========================================================================
 
-Copyright (C) 1997-2020 Free Software Foundation, Inc.
+Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
diff --git a/README-alpha b/README-alpha
index dd3baa3..02eb990 100644
--- a/README-alpha
+++ b/README-alpha
@@ -1,5 +1,7 @@
 This is the GNU Inetutils package.
-Copyright (C) 1999-2020 Free Software Foundation, Inc.
+Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+2020, 2021 Free Software Foundation, Inc.
 See end of file for copying conditions.
 
 This document describes the actions needed to build GNU inetutils from
diff --git a/THANKS b/THANKS
index 350ce2c..301773f 100644
--- a/THANKS
+++ b/THANKS
@@ -37,7 +37,9 @@ Todd R. Eigenschink <todd@tekinteractive.com>
 
 ========================================================================
 
-Copyright (C) 1997-2020 Free Software Foundation, Inc.
+Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
 Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
diff --git a/am/check_macro.m4 b/am/check_macro.m4
index 39bc44e..8883ffd 100644
--- a/am/check_macro.m4
+++ b/am/check_macro.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/check_member.m4 b/am/check_member.m4
index 463df47..0f4b095 100644
--- a/am/check_member.m4
+++ b/am/check_member.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/check_weak_refs.m4 b/am/check_weak_refs.m4
index 9675b39..6256acd 100644
--- a/am/check_weak_refs.m4
+++ b/am/check_weak_refs.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/config_paths.m4 b/am/config_paths.m4
index 7de9f16..27c0ca8 100644
--- a/am/config_paths.m4
+++ b/am/config_paths.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/enable.m4 b/am/enable.m4
index 8158f82..90326af 100644
--- a/am/enable.m4
+++ b/am/enable.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/flushleft.m4 b/am/flushleft.m4
index 34e6b6a..8bfeb4c 100644
--- a/am/flushleft.m4
+++ b/am/flushleft.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/krb5.m4 b/am/krb5.m4
index 0681954..676ffec 100644
--- a/am/krb5.m4
+++ b/am/krb5.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/libcurses.m4 b/am/libcurses.m4
index 54d2b41..05f5412 100644
--- a/am/libcurses.m4
+++ b/am/libcurses.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/libidn.m4 b/am/libidn.m4
index 68c43fd..a7bcf8b 100644
--- a/am/libidn.m4
+++ b/am/libidn.m4
@@ -1,5 +1,6 @@
 # libidn.m4 serial 2
-dnl Copyright (C) 2013-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+dnl Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/am/readline.m4 b/am/readline.m4
index ce9e0a5..c7b1cdf 100644
--- a/am/readline.m4
+++ b/am/readline.m4
@@ -1,5 +1,6 @@
 # readline.m4 serial 9
-dnl Copyright (C) 2005-2006, 2009-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2006, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/am/result.m4 b/am/result.m4
index 3fc870a..e69179a 100644
--- a/am/result.m4
+++ b/am/result.m4
@@ -1,5 +1,7 @@
 dnl
-dnl Copyright (C) 1996-2020 Free Software Foundation, Inc.
+dnl Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+dnl 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+dnl 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GNU Inetutils.
 dnl
diff --git a/bootstrap.conf b/bootstrap.conf
index 3cd52ed..20ec9bc 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -1,5 +1,6 @@
 # bootstrap.conf - Bootstrap configuration.
-# Copyright (C) 2007-2020 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+# 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/cfg.mk b/cfg.mk
index d4440b8..667f320 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,6 @@
 #
-# Copyright (C) 2009-2020 Free Software Foundation, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/configure.ac b/configure.ac
index 639d993..f13e33d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,7 @@
 # configure.ac - Configuration for inetutils
-# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+# 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/doc/Makefile.am b/doc/Makefile.am
index f9d336a..8606956 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+# 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/doc/inetutils.texi b/doc/inetutils.texi
index a1e0db3..5fb7675 100644
--- a/doc/inetutils.texi
+++ b/doc/inetutils.texi
@@ -59,7 +59,9 @@
 This manual documents version @value{VERSION} of the @sc{gnu} networking
 utilities.
 
-Copyright @copyright{} 2000--2020 Free Software Foundation, Inc.
+Copyright @copyright{} 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+2020, 2021 Free Software Foundation, Inc.
 
 @quotation
 Permission is granted to copy, distribute and/or modify this document
diff --git a/ftp/Makefile.am b/ftp/Makefile.am
index bfb0add..0d30987 100644
--- a/ftp/Makefile.am
+++ b/ftp/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ftp/cmds.c b/ftp/cmds.c
index 6ae88e7..780abc8 100644
--- a/ftp/cmds.c
+++ b/ftp/cmds.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/cmdtab.c b/ftp/cmdtab.c
index 20ceea2..fe1cf39 100644
--- a/ftp/cmdtab.c
+++ b/ftp/cmdtab.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/domacro.c b/ftp/domacro.c
index ef0e8d2..931e9ee 100644
--- a/ftp/domacro.c
+++ b/ftp/domacro.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/extern.h b/ftp/extern.h
index 08d62c4..b77a483 100644
--- a/ftp/extern.h
+++ b/ftp/extern.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/ftp.c b/ftp/ftp.c
index d474051..96fb6a5 100644
--- a/ftp/ftp.c
+++ b/ftp/ftp.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/ftp_var.h b/ftp/ftp_var.h
index d23bd8e..4c81cf7 100644
--- a/ftp/ftp_var.h
+++ b/ftp/ftp_var.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/main.c b/ftp/main.c
index febdbeb..1edffd4 100644
--- a/ftp/main.c
+++ b/ftp/main.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftp/ruserpass.c b/ftp/ruserpass.c
index aa3eaa3..2578be1 100644
--- a/ftp/ruserpass.c
+++ b/ftp/ruserpass.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/Makefile.am b/ftpd/Makefile.am
index 75708b2..5efabf4 100644
--- a/ftpd/Makefile.am
+++ b/ftpd/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ftpd/auth.c b/ftpd/auth.c
index 01fca02..82f6142 100644
--- a/ftpd/auth.c
+++ b/ftpd/auth.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/conf.c b/ftpd/conf.c
index e46b223..e67e8a0 100644
--- a/ftpd/conf.c
+++ b/ftpd/conf.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/extern.h b/ftpd/extern.h
index 3e2200f..8075f27 100644
--- a/ftpd/extern.h
+++ b/ftpd/extern.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/ftpcmd.y b/ftpd/ftpcmd.y
index 1827774..1072004 100644
--- a/ftpd/ftpcmd.y
+++ b/ftpd/ftpcmd.y
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/ftpd.c b/ftpd/ftpd.c
index 7af1dc5..68d41fd 100644
--- a/ftpd/ftpd.c
+++ b/ftpd/ftpd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/logwtmp.c b/ftpd/logwtmp.c
index 861e00e..45cd550 100644
--- a/ftpd/logwtmp.c
+++ b/ftpd/logwtmp.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/pam.c b/ftpd/pam.c
index d51dfe5..e1075d6 100644
--- a/ftpd/pam.c
+++ b/ftpd/pam.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/popen.c b/ftpd/popen.c
index d00a6fb..54fe130 100644
--- a/ftpd/popen.c
+++ b/ftpd/popen.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ftpd/server_mode.c b/ftpd/server_mode.c
index 302fa0d..f9dfe8f 100644
--- a/ftpd/server_mode.c
+++ b/ftpd/server_mode.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/Makefile.am b/ifconfig/Makefile.am
index a71dea5..7b1f953 100644
--- a/ifconfig/Makefile.am
+++ b/ifconfig/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+# 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ifconfig/changeif.c b/ifconfig/changeif.c
index fbe73dc..4a22701 100644
--- a/ifconfig/changeif.c
+++ b/ifconfig/changeif.c
@@ -1,5 +1,7 @@
 /* changeif.c -- change the configuration of a network interface
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/flags.c b/ifconfig/flags.c
index 252d335..6298d05 100644
--- a/ifconfig/flags.c
+++ b/ifconfig/flags.c
@@ -1,5 +1,7 @@
 /* flags.c -- network interface flag handling
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/flags.h b/ifconfig/flags.h
index 97375cf..5e0167e 100644
--- a/ifconfig/flags.h
+++ b/ifconfig/flags.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/ifconfig.c b/ifconfig/ifconfig.c
index 1d2bf14..a0edf96 100644
--- a/ifconfig/ifconfig.c
+++ b/ifconfig/ifconfig.c
@@ -1,5 +1,7 @@
 /* ifconfig.c -- network interface configuration utility
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/ifconfig.h b/ifconfig/ifconfig.h
index 3311248..d79e044 100644
--- a/ifconfig/ifconfig.h
+++ b/ifconfig/ifconfig.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/options.c b/ifconfig/options.c
index 0319d96..10bf4be 100644
--- a/ifconfig/options.c
+++ b/ifconfig/options.c
@@ -1,5 +1,7 @@
 /* options.c -- process the command line options
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/options.h b/ifconfig/options.h
index 7353b80..fd8f6c7 100644
--- a/ifconfig/options.h
+++ b/ifconfig/options.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/printif.c b/ifconfig/printif.c
index 63928bb..60c26ea 100644
--- a/ifconfig/printif.c
+++ b/ifconfig/printif.c
@@ -1,5 +1,7 @@
 /* printif.c -- print an interface configuration
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/printif.h b/ifconfig/printif.h
index 75f1aac..b0fd535 100644
--- a/ifconfig/printif.h
+++ b/ifconfig/printif.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system.c b/ifconfig/system.c
index a73977a..c60eaea 100644
--- a/ifconfig/system.c
+++ b/ifconfig/system.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system.h b/ifconfig/system.h
index 83cb722..235ceee 100644
--- a/ifconfig/system.h
+++ b/ifconfig/system.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/Makefile.am b/ifconfig/system/Makefile.am
index dc5f033..bbb3152 100644
--- a/ifconfig/system/Makefile.am
+++ b/ifconfig/system/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+# 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ifconfig/system/bsd.c b/ifconfig/system/bsd.c
index d2f4f5d..d69a14a 100644
--- a/ifconfig/system/bsd.c
+++ b/ifconfig/system/bsd.c
@@ -1,5 +1,7 @@
 /* bsd.c -- BSD specific code for ifconfig
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/bsd.h b/ifconfig/system/bsd.h
index 2ae2a6b..c8022ab 100644
--- a/ifconfig/system/bsd.h
+++ b/ifconfig/system/bsd.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/generic.c b/ifconfig/system/generic.c
index c8c7be6..d6db42a 100644
--- a/ifconfig/system/generic.c
+++ b/ifconfig/system/generic.c
@@ -1,5 +1,7 @@
 /* generic.c -- generic system code for ifconfig
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/generic.h b/ifconfig/system/generic.h
index 7010ab8..c9d0c31 100644
--- a/ifconfig/system/generic.h
+++ b/ifconfig/system/generic.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/hurd.c b/ifconfig/system/hurd.c
index 099e97e..590cb13 100644
--- a/ifconfig/system/hurd.c
+++ b/ifconfig/system/hurd.c
@@ -1,5 +1,6 @@
 /* hurd.c -- Code for ifconfig specific to GNU/Hurd.
-  Copyright (C) 2015-2020 Free Software Foundation, Inc.
+  Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/hurd.h b/ifconfig/system/hurd.h
index 72972d8..3549fa5 100644
--- a/ifconfig/system/hurd.h
+++ b/ifconfig/system/hurd.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2015-2020 Free Software Foundation, Inc.
+  Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/linux.c b/ifconfig/system/linux.c
index 3446242..e453b46 100644
--- a/ifconfig/system/linux.c
+++ b/ifconfig/system/linux.c
@@ -1,5 +1,7 @@
 /* linux.c -- Linux specific code for ifconfig
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/linux.h b/ifconfig/system/linux.h
index 2476656..c2eb936 100644
--- a/ifconfig/system/linux.h
+++ b/ifconfig/system/linux.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/qnx.c b/ifconfig/system/qnx.c
index 474ec8d..df6088d 100644
--- a/ifconfig/system/qnx.c
+++ b/ifconfig/system/qnx.c
@@ -1,5 +1,7 @@
 /* qnx.c -- QNX specific code for ifconfig
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/qnx.h b/ifconfig/system/qnx.h
index 2bed6db..1b08e07 100644
--- a/ifconfig/system/qnx.h
+++ b/ifconfig/system/qnx.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/solaris.c b/ifconfig/system/solaris.c
index 8e00d66..ad0e970 100644
--- a/ifconfig/system/solaris.c
+++ b/ifconfig/system/solaris.c
@@ -1,5 +1,7 @@
 /* solaris.c -- Solaris specific code for ifconfig
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ifconfig/system/solaris.h b/ifconfig/system/solaris.h
index 73f9475..e9cc8cd 100644
--- a/ifconfig/system/solaris.h
+++ b/ifconfig/system/solaris.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libicmp/Makefile.am b/libicmp/Makefile.am
index 4e7a912..22e2388 100644
--- a/libicmp/Makefile.am
+++ b/libicmp/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 2001-2020 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+# 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/libicmp/icmp.h b/libicmp/icmp.h
index 8a1deba..be46dfc 100644
--- a/libicmp/icmp.h
+++ b/libicmp/icmp.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libicmp/icmp_address.c b/libicmp/icmp_address.c
index a37f3a8..c968019 100644
--- a/libicmp/icmp_address.c
+++ b/libicmp/icmp_address.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libicmp/icmp_cksum.c b/libicmp/icmp_cksum.c
index f7b80b8..83bcbb3 100644
--- a/libicmp/icmp_cksum.c
+++ b/libicmp/icmp_cksum.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libicmp/icmp_echo.c b/libicmp/icmp_echo.c
index dd6d8ef..f363c28 100644
--- a/libicmp/icmp_echo.c
+++ b/libicmp/icmp_echo.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libicmp/icmp_timestamp.c b/libicmp/icmp_timestamp.c
index 8f70dc0..82e62ba 100644
--- a/libicmp/icmp_timestamp.c
+++ b/libicmp/icmp_timestamp.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/Makefile.am b/libinetutils/Makefile.am
index 8edd8f8..1559a8f 100644
--- a/libinetutils/Makefile.am
+++ b/libinetutils/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/libinetutils/argcv.c b/libinetutils/argcv.c
index ad00073..6957295 100644
--- a/libinetutils/argcv.c
+++ b/libinetutils/argcv.c
@@ -1,5 +1,7 @@
 /* argcv.c - simple functions for parsing input based on whitespace
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/argcv.h b/libinetutils/argcv.h
index 1999210..9857beb 100644
--- a/libinetutils/argcv.h
+++ b/libinetutils/argcv.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/cleansess.c b/libinetutils/cleansess.c
index 308c942..73ff733 100644
--- a/libinetutils/cleansess.c
+++ b/libinetutils/cleansess.c
@@ -1,5 +1,7 @@
 /* cleansess.c - Clean up the pty and frob utmp/wtmp accordingly after logout
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/daemon.c b/libinetutils/daemon.c
index 5cd8eb8..d8fe75b 100644
--- a/libinetutils/daemon.c
+++ b/libinetutils/daemon.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/defauthors.c b/libinetutils/defauthors.c
index f10f9d4..4379e88 100644
--- a/libinetutils/defauthors.c
+++ b/libinetutils/defauthors.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2009-2020 Free Software Foundation, Inc.
+  Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/des_rw.c b/libinetutils/des_rw.c
index 518e56d..b1011b3 100644
--- a/libinetutils/des_rw.c
+++ b/libinetutils/des_rw.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/if_index.c b/libinetutils/if_index.c
index 1a03ab1..a4eb95a 100644
--- a/libinetutils/if_index.c
+++ b/libinetutils/if_index.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/kcmd.c b/libinetutils/kcmd.c
index 37dabb3..bc16aa9 100644
--- a/libinetutils/kcmd.c
+++ b/libinetutils/kcmd.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/kerberos5.c b/libinetutils/kerberos5.c
index 7f8bc1c..aca0309 100644
--- a/libinetutils/kerberos5.c
+++ b/libinetutils/kerberos5.c
@@ -1,5 +1,6 @@
 /* kerberos5.c -- functions to use Heimdal's and MIT's Kerberos V
-  Copyright (C) 2014-2020 Free Software Foundation, Inc.
+  Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/kerberos5_def.h b/libinetutils/kerberos5_def.h
index f47f350..753ca6f 100644
--- a/libinetutils/kerberos5_def.h
+++ b/libinetutils/kerberos5_def.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2014-2020 Free Software Foundation, Inc.
+  Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/krcmd.c b/libinetutils/krcmd.c
index d9e006a..ef3d28c 100644
--- a/libinetutils/krcmd.c
+++ b/libinetutils/krcmd.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/libinetutils.h b/libinetutils/libinetutils.h
index 259e342..0926718 100644
--- a/libinetutils/libinetutils.h
+++ b/libinetutils/libinetutils.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2006-2020 Free Software Foundation, Inc.
+  Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/localhost.c b/libinetutils/localhost.c
index 50e0a4a..a1b676f 100644
--- a/libinetutils/localhost.c
+++ b/libinetutils/localhost.c
@@ -1,5 +1,7 @@
 /* localhost.c - A slightly more convenient wrapper for gethostname
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/logwtmp.c b/libinetutils/logwtmp.c
index 4759a29..5396ff4 100644
--- a/libinetutils/logwtmp.c
+++ b/libinetutils/logwtmp.c
@@ -1,5 +1,7 @@
 /* logwtmp.c - A version of BSDs `logwtmp' that should be widely portable
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/logwtmpko.c b/libinetutils/logwtmpko.c
index b98e070..ef01f6d 100644
--- a/libinetutils/logwtmpko.c
+++ b/libinetutils/logwtmpko.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/setsig.c b/libinetutils/setsig.c
index dfbba29..cc03912 100644
--- a/libinetutils/setsig.c
+++ b/libinetutils/setsig.c
@@ -1,5 +1,7 @@
 /* setsig.c - Set a signal handler, trying to turning on the SA_RESTART bit
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/shishi.c b/libinetutils/shishi.c
index 0999d2b..2e53560 100644
--- a/libinetutils/shishi.c
+++ b/libinetutils/shishi.c
@@ -1,5 +1,7 @@
 /* shishi.c -- functions to use kerberos V with shishi
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/shishi_def.h b/libinetutils/shishi_def.h
index f616cf1..c094cba 100644
--- a/libinetutils/shishi_def.h
+++ b/libinetutils/shishi_def.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/tftpsubs.c b/libinetutils/tftpsubs.c
index e7ba2f1..b41e9f8 100644
--- a/libinetutils/tftpsubs.c
+++ b/libinetutils/tftpsubs.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1998-2020 Free Software Foundation, Inc.
+  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/tftpsubs.h b/libinetutils/tftpsubs.h
index a22748b..5455c5c 100644
--- a/libinetutils/tftpsubs.h
+++ b/libinetutils/tftpsubs.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1998-2020 Free Software Foundation, Inc.
+  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/ttymsg.c b/libinetutils/ttymsg.c
index 0ca83b1..3e7e70b 100644
--- a/libinetutils/ttymsg.c
+++ b/libinetutils/ttymsg.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/utmp_init.c b/libinetutils/utmp_init.c
index 8e97c3a..3044a31 100644
--- a/libinetutils/utmp_init.c
+++ b/libinetutils/utmp_init.c
@@ -1,6 +1,7 @@
 /*
-  Copyright (C) 1999-2016, 2107, 2018-2020 Free Software Foundation,
-  Inc.
+  Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+  2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2107, 2018,
+  2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libinetutils/utmp_logout.c b/libinetutils/utmp_logout.c
index 5bc0ce0..04f35ee 100644
--- a/libinetutils/utmp_logout.c
+++ b/libinetutils/utmp_logout.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1999-2020 Free Software Foundation, Inc.
+  Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+  2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+  2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/Makefile.am b/libls/Makefile.am
index 5481c1a..5123ac5 100644
--- a/libls/Makefile.am
+++ b/libls/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 2000-2020 Free Software Foundation, Inc.
+# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+# 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/libls/cmp.c b/libls/cmp.c
index 1bd64dc..e7d1ee7 100644
--- a/libls/cmp.c
+++ b/libls/cmp.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/extern.h b/libls/extern.h
index 93041f6..5c6076a 100644
--- a/libls/extern.h
+++ b/libls/extern.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/fts.c b/libls/fts.c
index c085813..b5f5aad 100644
--- a/libls/fts.c
+++ b/libls/fts.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/fts.h b/libls/fts.h
index 77f0df0..3d6a29f 100644
--- a/libls/fts.h
+++ b/libls/fts.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/ls.c b/libls/ls.c
index 3ca13de..83f3d33 100644
--- a/libls/ls.c
+++ b/libls/ls.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/ls.h b/libls/ls.h
index fbbfeff..edd91ee 100644
--- a/libls/ls.h
+++ b/libls/ls.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/print.c b/libls/print.c
index aad5704..c7a9c47 100644
--- a/libls/print.c
+++ b/libls/print.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/stat_flags.c b/libls/stat_flags.c
index 23ab824..ad14435 100644
--- a/libls/stat_flags.c
+++ b/libls/stat_flags.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libls/util.c b/libls/util.c
index d0b0a1e..115599f 100644
--- a/libls/util.c
+++ b/libls/util.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2000-2020 Free Software Foundation, Inc.
+  Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/Makefile.am b/libtelnet/Makefile.am
index 7b9ab6b..d01e482 100644
--- a/libtelnet/Makefile.am
+++ b/libtelnet/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/libtelnet/auth-proto.h b/libtelnet/auth-proto.h
index 76c02dd..f49f46a 100644
--- a/libtelnet/auth-proto.h
+++ b/libtelnet/auth-proto.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/auth.c b/libtelnet/auth.c
index e93079a..310d30d 100644
--- a/libtelnet/auth.c
+++ b/libtelnet/auth.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/auth.h b/libtelnet/auth.h
index 6253ded..ce91a2f 100644
--- a/libtelnet/auth.h
+++ b/libtelnet/auth.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/enc-proto.h b/libtelnet/enc-proto.h
index d5217bb..ab0782d 100644
--- a/libtelnet/enc-proto.h
+++ b/libtelnet/enc-proto.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/enc_des.c b/libtelnet/enc_des.c
index 1c7e932..4cf716a 100644
--- a/libtelnet/enc_des.c
+++ b/libtelnet/enc_des.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/encrypt.c b/libtelnet/encrypt.c
index 70fae53..fdef43e 100644
--- a/libtelnet/encrypt.c
+++ b/libtelnet/encrypt.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/encrypt.h b/libtelnet/encrypt.h
index 01dff93..a7fbdaa 100644
--- a/libtelnet/encrypt.h
+++ b/libtelnet/encrypt.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/forward.c b/libtelnet/forward.c
index 1b75ddb..e565a08 100644
--- a/libtelnet/forward.c
+++ b/libtelnet/forward.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/genget.c b/libtelnet/genget.c
index cab60c4..d9e04df 100644
--- a/libtelnet/genget.c
+++ b/libtelnet/genget.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/genget.h b/libtelnet/genget.h
index 516bad7..3bb3bae 100644
--- a/libtelnet/genget.h
+++ b/libtelnet/genget.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2009-2020 Free Software Foundation, Inc.
+  Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/getent.c b/libtelnet/getent.c
index c4fb22d..27a1767 100644
--- a/libtelnet/getent.c
+++ b/libtelnet/getent.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/kerberos.c b/libtelnet/kerberos.c
index 4a094a2..4074909 100644
--- a/libtelnet/kerberos.c
+++ b/libtelnet/kerberos.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/kerberos5.c b/libtelnet/kerberos5.c
index d66160e..19e4fb5 100644
--- a/libtelnet/kerberos5.c
+++ b/libtelnet/kerberos5.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/key-proto.h b/libtelnet/key-proto.h
index c67b1e1..b5e8d23 100644
--- a/libtelnet/key-proto.h
+++ b/libtelnet/key-proto.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/misc-proto.h b/libtelnet/misc-proto.h
index 083d973..c24abf9 100644
--- a/libtelnet/misc-proto.h
+++ b/libtelnet/misc-proto.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/misc.c b/libtelnet/misc.c
index 8099168..6a06dec 100644
--- a/libtelnet/misc.c
+++ b/libtelnet/misc.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/misc.h b/libtelnet/misc.h
index 0af0def..b6d058a 100644
--- a/libtelnet/misc.h
+++ b/libtelnet/misc.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/read_passwd.c b/libtelnet/read_passwd.c
index 319d772..60315c8 100644
--- a/libtelnet/read_passwd.c
+++ b/libtelnet/read_passwd.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/libtelnet/shishi.c b/libtelnet/shishi.c
index 363830e..deacb7e 100644
--- a/libtelnet/shishi.c
+++ b/libtelnet/shishi.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2003-2020 Free Software Foundation, Inc.
+  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
+  2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/man/Makefile.am b/man/Makefile.am
index 9d3952b..6721dc7 100644
--- a/man/Makefile.am
+++ b/man/Makefile.am
@@ -1,5 +1,6 @@
 #
-# Copyright (C) 2009-2020 Free Software Foundation, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/paths b/paths
index e849e1b..f3e7d9f 100644
--- a/paths
+++ b/paths
@@ -1,5 +1,7 @@
 # paths - Paths for inetutils
-# Copyright (C) 1996-2020 Free Software Foundation, Inc.
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+# 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ping/Makefile.am b/ping/Makefile.am
index 39890d4..68748f2 100644
--- a/ping/Makefile.am
+++ b/ping/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/ping/libping.c b/ping/libping.c
index 92cd775..5ee33b9 100644
--- a/ping/libping.c
+++ b/ping/libping.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2008-2020 Free Software Foundation, Inc.
+  Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping.c b/ping/ping.c
index e4c7d30..eb5a7b0 100644
--- a/ping/ping.c
+++ b/ping/ping.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1998-2020 Free Software Foundation, Inc.
+  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping.h b/ping/ping.h
index 03b0c74..87cdfca 100644
--- a/ping/ping.h
+++ b/ping/ping.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2008-2020 Free Software Foundation, Inc.
+  Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping6.c b/ping/ping6.c
index 871f60a..e3d49d6 100644
--- a/ping/ping6.c
+++ b/ping/ping6.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping6.h b/ping/ping6.h
index 9eb0c92..741d607 100644
--- a/ping/ping6.h
+++ b/ping/ping6.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_address.c b/ping/ping_address.c
index 91af367..7163ddd 100644
--- a/ping/ping_address.c
+++ b/ping/ping_address.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_common.c b/ping/ping_common.c
index e29b562..ce07451 100644
--- a/ping/ping_common.c
+++ b/ping/ping_common.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_common.h b/ping/ping_common.h
index 33a2b5e..781456c 100644
--- a/ping/ping_common.h
+++ b/ping/ping_common.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2005-2020 Free Software Foundation, Inc.
+  Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_echo.c b/ping/ping_echo.c
index 8098562..2976830 100644
--- a/ping/ping_echo.c
+++ b/ping/ping_echo.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_impl.h b/ping/ping_impl.h
index b689341..5c9f5cc 100644
--- a/ping/ping_impl.h
+++ b/ping/ping_impl.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_router.c b/ping/ping_router.c
index 53a7144..0a6d48d 100644
--- a/ping/ping_router.c
+++ b/ping/ping_router.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/ping/ping_timestamp.c b/ping/ping_timestamp.c
index 3bf726b..b32c36f 100644
--- a/ping/ping_timestamp.c
+++ b/ping/ping_timestamp.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 4e0e1d0..5037440 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/src/dnsdomainname.c b/src/dnsdomainname.c
index f337c09..9687a28 100644
--- a/src/dnsdomainname.c
+++ b/src/dnsdomainname.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2012-2020 Free Software Foundation, Inc.
+  Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020,
+  2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/hostname.c b/src/hostname.c
index bf432fd..e37fe81 100644
--- a/src/hostname.c
+++ b/src/hostname.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2008-2020 Free Software Foundation, Inc.
+  Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/inetd.c b/src/inetd.c
index 6bd5365..d3d8281 100644
--- a/src/inetd.c
+++ b/src/inetd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/logger.c b/src/logger.c
index dcc4f8d..7f62cff 100644
--- a/src/logger.c
+++ b/src/logger.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2009-2020 Free Software Foundation, Inc.
+  Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/logprio.h b/src/logprio.h
index 625769b..57cb30f 100644
--- a/src/logprio.h
+++ b/src/logprio.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2011-2020 Free Software Foundation, Inc.
+  Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+  2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rcp.c b/src/rcp.c
index 33f33ee..476cbaa 100644
--- a/src/rcp.c
+++ b/src/rcp.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rexec.c b/src/rexec.c
index 8df25ec..a1c2bd4 100644
--- a/src/rexec.c
+++ b/src/rexec.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2009-2020 Free Software Foundation, Inc.
+  Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rexecd.c b/src/rexecd.c
index 714b7eb..f3c5092 100644
--- a/src/rexecd.c
+++ b/src/rexecd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rlogin.c b/src/rlogin.c
index b622793..bdfcfa6 100644
--- a/src/rlogin.c
+++ b/src/rlogin.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rlogind.c b/src/rlogind.c
index 0380b4a..2a469e7 100644
--- a/src/rlogind.c
+++ b/src/rlogind.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rsh.c b/src/rsh.c
index 779c4d3..fa97e2a 100644
--- a/src/rsh.c
+++ b/src/rsh.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/rshd.c b/src/rshd.c
index b67d888..fed6f39 100644
--- a/src/rshd.c
+++ b/src/rshd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/syslogd.c b/src/syslogd.c
index cb27d95..4528d7e 100644
--- a/src/syslogd.c
+++ b/src/syslogd.c
@@ -1,5 +1,7 @@
 /* syslogd - log system messages
-  Copyright (C) 1997-2020 Free Software Foundation, Inc.
+  Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+  2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+  2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/tftp.c b/src/tftp.c
index 670253e..1143e74 100644
--- a/src/tftp.c
+++ b/src/tftp.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/tftpd.c b/src/tftpd.c
index 0e485d4..cc1b703 100644
--- a/src/tftpd.c
+++ b/src/tftpd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/traceroute.c b/src/traceroute.c
index 3107c8b..de7db4b 100644
--- a/src/traceroute.c
+++ b/src/traceroute.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2007-2020 Free Software Foundation, Inc.
+  Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/src/uucpd.c b/src/uucpd.c
index edebb20..c8bb460 100644
--- a/src/uucpd.c
+++ b/src/uucpd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/summary.sh.in b/summary.sh.in
index f734076..407bc5b 100644
--- a/summary.sh.in
+++ b/summary.sh.in
@@ -1,6 +1,7 @@
 #!/bin/sh
 #
-# Copyright (C) 2013-2020 Free Software Foundation, Inc.
+# Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/talk/Makefile.am b/talk/Makefile.am
index 5bbc56e..9b3d4a1 100644
--- a/talk/Makefile.am
+++ b/talk/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/talk/ctl.c b/talk/ctl.c
index c827a97..7facf7d 100644
--- a/talk/ctl.c
+++ b/talk/ctl.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/ctl_transact.c b/talk/ctl_transact.c
index 2f0d351..cbb733f 100644
--- a/talk/ctl_transact.c
+++ b/talk/ctl_transact.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/display.c b/talk/display.c
index fd5f90c..08908fe 100644
--- a/talk/display.c
+++ b/talk/display.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/get_addrs.c b/talk/get_addrs.c
index 563fbad..b6e61df 100644
--- a/talk/get_addrs.c
+++ b/talk/get_addrs.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/get_names.c b/talk/get_names.c
index 23b1980..ac21209 100644
--- a/talk/get_names.c
+++ b/talk/get_names.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/init_disp.c b/talk/init_disp.c
index 131ca3c..99e6b60 100644
--- a/talk/init_disp.c
+++ b/talk/init_disp.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/invite.c b/talk/invite.c
index 0058ec9..84b1976 100644
--- a/talk/invite.c
+++ b/talk/invite.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/io.c b/talk/io.c
index 15859c8..17ea593 100644
--- a/talk/io.c
+++ b/talk/io.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/look_up.c b/talk/look_up.c
index b00248d..1167597 100644
--- a/talk/look_up.c
+++ b/talk/look_up.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/msgs.c b/talk/msgs.c
index 1cadedf..d555e21 100644
--- a/talk/msgs.c
+++ b/talk/msgs.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/talk.c b/talk/talk.c
index dcd6d50..af55227 100644
--- a/talk/talk.c
+++ b/talk/talk.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/talk.h b/talk/talk.h
index e323f86..d830e64 100644
--- a/talk/talk.h
+++ b/talk/talk.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talk/talk_ctl.h b/talk/talk_ctl.h
index 47f384d..739ecf7 100644
--- a/talk/talk_ctl.h
+++ b/talk/talk_ctl.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/Makefile.am b/talkd/Makefile.am
index 2dd6d96..7a37394 100644
--- a/talkd/Makefile.am
+++ b/talkd/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/talkd/acl.c b/talkd/acl.c
index 62c5666..a55e8b0 100644
--- a/talkd/acl.c
+++ b/talkd/acl.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/announce.c b/talkd/announce.c
index 6b48556..7d10d72 100644
--- a/talkd/announce.c
+++ b/talkd/announce.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1994-2020 Free Software Foundation, Inc.
+  Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+  2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+  2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/intalkd.h b/talkd/intalkd.h
index 7eb30db..e48d93c 100644
--- a/talkd/intalkd.h
+++ b/talkd/intalkd.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2001-2020 Free Software Foundation, Inc.
+  Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+  2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/print.c b/talkd/print.c
index 3349ea9..af61d0a 100644
--- a/talkd/print.c
+++ b/talkd/print.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/process.c b/talkd/process.c
index 415a609..32cfe8d 100644
--- a/talkd/process.c
+++ b/talkd/process.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/table.c b/talkd/table.c
index 1f07b68..76b1137 100644
--- a/talkd/table.c
+++ b/talkd/table.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/talkd/talkd.c b/talkd/talkd.c
index f708f29..452d3f1 100644
--- a/talkd/talkd.c
+++ b/talkd/talkd.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/Makefile.am b/telnet/Makefile.am
index 82c1e83..2ccce31 100644
--- a/telnet/Makefile.am
+++ b/telnet/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/telnet/authenc.c b/telnet/authenc.c
index 185eb32..6cc4d2a 100644
--- a/telnet/authenc.c
+++ b/telnet/authenc.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/commands.c b/telnet/commands.c
index ca3010b..a3eee8c 100644
--- a/telnet/commands.c
+++ b/telnet/commands.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/defines.h b/telnet/defines.h
index 1f25d03..8f87d50 100644
--- a/telnet/defines.h
+++ b/telnet/defines.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/externs.h b/telnet/externs.h
index 2a420e6..8d10549 100644
--- a/telnet/externs.h
+++ b/telnet/externs.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/general.h b/telnet/general.h
index ab6e2f1..691a3b0 100644
--- a/telnet/general.h
+++ b/telnet/general.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/krb4-proto.h b/telnet/krb4-proto.h
index 6104df2..10afa7e 100644
--- a/telnet/krb4-proto.h
+++ b/telnet/krb4-proto.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/main.c b/telnet/main.c
index dca7847..a80d3c3 100644
--- a/telnet/main.c
+++ b/telnet/main.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/network.c b/telnet/network.c
index 0938502..546d06c 100644
--- a/telnet/network.c
+++ b/telnet/network.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/ring.c b/telnet/ring.c
index 31824fe..42e6464 100644
--- a/telnet/ring.c
+++ b/telnet/ring.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/ring.h b/telnet/ring.h
index fb34db6..a2c7655 100644
--- a/telnet/ring.h
+++ b/telnet/ring.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/sys_bsd.c b/telnet/sys_bsd.c
index 5475d08..6a4b655 100644
--- a/telnet/sys_bsd.c
+++ b/telnet/sys_bsd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/telnet.c b/telnet/telnet.c
index 7746f7d..a1633bb 100644
--- a/telnet/telnet.c
+++ b/telnet/telnet.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/terminal.c b/telnet/terminal.c
index fbed34d..d65428a 100644
--- a/telnet/terminal.c
+++ b/telnet/terminal.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/tn3270.c b/telnet/tn3270.c
index 331183d..e8ae7a4 100644
--- a/telnet/tn3270.c
+++ b/telnet/tn3270.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/types.h b/telnet/types.h
index 07f62f6..f322792 100644
--- a/telnet/types.h
+++ b/telnet/types.h
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnet/utilities.c b/telnet/utilities.c
index 44b66d2..85fd476 100644
--- a/telnet/utilities.c
+++ b/telnet/utilities.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1995-2020 Free Software Foundation, Inc.
+  Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+  2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
+  2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation,
+  Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/Makefile.am b/telnetd/Makefile.am
index 0047c62..0658337 100644
--- a/telnetd/Makefile.am
+++ b/telnetd/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1997-2020 Free Software Foundation, Inc.
+# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016,
+# 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/telnetd/pty.c b/telnetd/pty.c
index 033022e..afaf7fd 100644
--- a/telnetd/pty.c
+++ b/telnetd/pty.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2002-2020 Free Software Foundation, Inc.
+  Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+  2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/slc.c b/telnetd/slc.c
index fba90bd..8cdd5e5 100644
--- a/telnetd/slc.c
+++ b/telnetd/slc.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/state.c b/telnetd/state.c
index 288ebd4..aba3bec 100644
--- a/telnetd/state.c
+++ b/telnetd/state.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/telnetd.c b/telnetd/telnetd.c
index 048ed13..c0d3ba0 100644
--- a/telnetd/telnetd.c
+++ b/telnetd/telnetd.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/telnetd.h b/telnetd/telnetd.h
index 2578cc6..065b5cb 100644
--- a/telnetd/telnetd.h
+++ b/telnetd/telnetd.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1996-2020 Free Software Foundation, Inc.
+  Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+  2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/term.c b/telnetd/term.c
index 206e0c8..b490a8e 100644
--- a/telnetd/term.c
+++ b/telnetd/term.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 2002-2020 Free Software Foundation, Inc.
+  Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+  2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/termstat.c b/telnetd/termstat.c
index 6f94da0..753b0c7 100644
--- a/telnetd/termstat.c
+++ b/telnetd/termstat.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/telnetd/utility.c b/telnetd/utility.c
index e9fa017..32bcc11 100644
--- a/telnetd/utility.c
+++ b/telnetd/utility.c
@@ -1,5 +1,8 @@
 /*
-  Copyright (C) 1993-2020 Free Software Foundation, Inc.
+  Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+  2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012,
+  2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free Software
+  Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 34e68a1..0d201eb 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,5 +1,6 @@
 #
-# Copyright (C) 2007-2020 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+# 2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/addrpeek.c b/tests/addrpeek.c
index 25cd1da..347a48a 100644
--- a/tests/addrpeek.c
+++ b/tests/addrpeek.c
@@ -1,5 +1,6 @@
 /* addrpeek - testing service for Inetd: remote address, environment vars
-  Copyright (C) 2010-2020 Free Software Foundation, Inc.
+  Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+  2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/dnsdomainname.sh b/tests/dnsdomainname.sh
index b6fb9cd..e7a9e87 100755
--- a/tests/dnsdomainname.sh
+++ b/tests/dnsdomainname.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2012-2020 Free Software Foundation, Inc.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020,
+# 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/ftp-localhost.sh b/tests/ftp-localhost.sh
index a31f220..2d94317 100755
--- a/tests/ftp-localhost.sh
+++ b/tests/ftp-localhost.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+# Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/ftp-parser.sh b/tests/ftp-parser.sh
index 1be8319..e08fa24 100755
--- a/tests/ftp-parser.sh
+++ b/tests/ftp-parser.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2020 Free Software Foundation, Inc.
+# Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+# Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/hostname.sh b/tests/hostname.sh
index 572f0e7..5bb2b91 100755
--- a/tests/hostname.sh
+++ b/tests/hostname.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+# Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/identify.c b/tests/identify.c
index e3671fc..f556a62 100644
--- a/tests/identify.c
+++ b/tests/identify.c
@@ -1,5 +1,6 @@
 /* identify -- Probe system and report characteristica.
-  Copyright (C) 2013-2020 Free Software Foundation, Inc.
+  Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/ifconfig.sh b/tests/ifconfig.sh
index 2fdbcd5..418e390 100755
--- a/tests/ifconfig.sh
+++ b/tests/ifconfig.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+# Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/ifconfig_modes.sh b/tests/ifconfig_modes.sh
index 3c1a81e..85a7497 100644
--- a/tests/ifconfig_modes.sh
+++ b/tests/ifconfig_modes.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2020 Free Software Foundation, Inc.
+# Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+# Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/inetd.sh b/tests/inetd.sh
index 188c31c..65bcc02 100755
--- a/tests/inetd.sh
+++ b/tests/inetd.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2013-2020 Free Software Foundation, Inc.
+# Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+# Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/libls.sh b/tests/libls.sh
index b8d048d..3817ab2 100755
--- a/tests/libls.sh
+++ b/tests/libls.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2020 Free Software Foundation, Inc.
+# Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+# Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/localhost.c b/tests/localhost.c
index 11c367a..8b7a745 100644
--- a/tests/localhost.c
+++ b/tests/localhost.c
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2007-2020 Free Software Foundation, Inc.
+  Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+  2016, 2017, 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/ls.c b/tests/ls.c
index 9dc8ddc..abb2c49 100644
--- a/tests/ls.c
+++ b/tests/ls.c
@@ -1,5 +1,6 @@
 /* ls - program buildable from libls
-  Copyright (C) 2014-2020 Free Software Foundation, Inc.
+  Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Free
+  Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/ping-localhost.sh b/tests/ping-localhost.sh
index 97d647e..1e8215d 100755
--- a/tests/ping-localhost.sh
+++ b/tests/ping-localhost.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2009-2020 Free Software Foundation, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/readutmp.c b/tests/readutmp.c
index 3c5158f..02d42b1 100644
--- a/tests/readutmp.c
+++ b/tests/readutmp.c
@@ -1,5 +1,6 @@
 /* readutmp - Basic test of existing utmp/utmpx access.
-  Copyright (C) 2010-2020 Free Software Foundation, Inc.
+  Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+  2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/runtime-ipv6.c b/tests/runtime-ipv6.c
index 7f0cbc5..1f9b089 100644
--- a/tests/runtime-ipv6.c
+++ b/tests/runtime-ipv6.c
@@ -1,5 +1,5 @@
 /* runtime-ipv6 - Check that system is able to set IPv6 address.
-  Copyright (C) 2020 Free Software Foundation, Inc.
+  Copyright (C) 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/syslogd.sh b/tests/syslogd.sh
index 19e5209..5733e1b 100755
--- a/tests/syslogd.sh
+++ b/tests/syslogd.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+# Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/tcpget.c b/tests/tcpget.c
index cc6b312..29de726 100644
--- a/tests/tcpget.c
+++ b/tests/tcpget.c
@@ -1,5 +1,6 @@
 /* tcpget - get single response from a TCP port.
-  Copyright (C) 2013-2020 Free Software Foundation, Inc.
+  Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
+  Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/telnet-localhost.sh b/tests/telnet-localhost.sh
index 40aecd6..518fe55 100755
--- a/tests/telnet-localhost.sh
+++ b/tests/telnet-localhost.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2011-2020 Free Software Foundation, Inc.
+# Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
+# 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/test-snprintf.c b/tests/test-snprintf.c
index 317683f..9affcbe 100644
--- a/tests/test-snprintf.c
+++ b/tests/test-snprintf.c
@@ -1,5 +1,5 @@
 /* test-snprintf - Check whether snprintf allows doubly used strings.
-  Copyright (C) 2020 Free Software Foundation, Inc.
+  Copyright (C) 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/tests/tftp.sh b/tests/tftp.sh
index d4d58b9..ded4fa0 100755
--- a/tests/tftp.sh
+++ b/tests/tftp.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2010-2020 Free Software Foundation, Inc.
+# Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+# 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/tools.sh.in b/tests/tools.sh.in
index 44b47c9..7e91748 100644
--- a/tests/tools.sh.in
+++ b/tests/tools.sh.in
@@ -1,4 +1,5 @@
-# Copyright (C) 2012-2020 Free Software Foundation, Inc.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020,
+# 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/traceroute-localhost.sh b/tests/traceroute-localhost.sh
index 7965384..65613d1 100755
--- a/tests/traceroute-localhost.sh
+++ b/tests/traceroute-localhost.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2009-2020 Free Software Foundation, Inc.
+# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/utmp.sh b/tests/utmp.sh
index 5f348f9..a8b78c0 100755
--- a/tests/utmp.sh
+++ b/tests/utmp.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
-# Copyright (C) 2012-2020 Free Software Foundation, Inc.
+# Copyright (C) 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020,
+# 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/tests/waitdaemon.c b/tests/waitdaemon.c
index ea4fe6d..71c1320 100644
--- a/tests/waitdaemon.c
+++ b/tests/waitdaemon.c
@@ -1,5 +1,6 @@
 /* waitdaemon -- Verify that waitdaemon() is functional.
-  Copyright (C) 2010-2020 Free Software Foundation, Inc.
+  Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018,
+  2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/whois/Makefile.am b/whois/Makefile.am
index 7278dbc..d7104ad 100644
--- a/whois/Makefile.am
+++ b/whois/Makefile.am
@@ -1,5 +1,7 @@
 #
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/as_del_list b/whois/as_del_list
index 48e69c6..7e44a78 100644
--- a/whois/as_del_list
+++ b/whois/as_del_list
@@ -1,4 +1,6 @@
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/data.h b/whois/data.h
index 182dcee..d1eb10a 100644
--- a/whois/data.h
+++ b/whois/data.h
@@ -1,5 +1,6 @@
 /*
-  Copyright (C) 2009-2020 Free Software Foundation, Inc.
+  Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/whois/ip6_del_list b/whois/ip6_del_list
index 02d0638..7f01882 100644
--- a/whois/ip6_del_list
+++ b/whois/ip6_del_list
@@ -1,4 +1,4 @@
-# Copyright (C) 2020 Free Software Foundation, Inc.
+# Copyright (C) 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/ip_del_list b/whois/ip_del_list
index c17b28f..b640024 100644
--- a/whois/ip_del_list
+++ b/whois/ip_del_list
@@ -1,4 +1,6 @@
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/make_as_del.pl b/whois/make_as_del.pl
index 5d19805..d6c5781 100755
--- a/whois/make_as_del.pl
+++ b/whois/make_as_del.pl
@@ -1,6 +1,8 @@
 #!/usr/bin/perl -w
 
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/make_ip6_del.pl b/whois/make_ip6_del.pl
index 9b1ac87..09fd504 100755
--- a/whois/make_ip6_del.pl
+++ b/whois/make_ip6_del.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright (C) 2020 Free Software Foundation, Inc.
+# Copyright (C) 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/make_ip_del.pl b/whois/make_ip_del.pl
index 16339e1..c86e52b 100755
--- a/whois/make_ip_del.pl
+++ b/whois/make_ip_del.pl
@@ -1,6 +1,8 @@
 #!/usr/bin/perl -w
 
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/make_tld_serv.pl b/whois/make_tld_serv.pl
index cd3a6d6..b77b917 100755
--- a/whois/make_tld_serv.pl
+++ b/whois/make_tld_serv.pl
@@ -1,6 +1,8 @@
 #!/usr/bin/perl -w
 
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/tld_serv_list b/whois/tld_serv_list
index 1f82419..ad7b982 100644
--- a/whois/tld_serv_list
+++ b/whois/tld_serv_list
@@ -1,4 +1,6 @@
-# Copyright (C) 1998-2020 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+# 2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 #
 # This file is part of GNU Inetutils.
 #
diff --git a/whois/whois.c b/whois/whois.c
index 84e0cc9..a62f5ca 100644
--- a/whois/whois.c
+++ b/whois/whois.c
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1998-2020 Free Software Foundation, Inc.
+  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 
diff --git a/whois/whois.h b/whois/whois.h
index 6126bdf..095d71f 100644
--- a/whois/whois.h
+++ b/whois/whois.h
@@ -1,5 +1,7 @@
 /*
-  Copyright (C) 1998-2020 Free Software Foundation, Inc.
+  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
+  2018, 2019, 2020, 2021 Free Software Foundation, Inc.
 
   This file is part of GNU Inetutils.
 

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                     | 4 +++-
 ChangeLog.0                   | 5 ++++-
 Makefile.am                   | 4 +++-
 NEWS                          | 4 +++-
 README                        | 4 +++-
 README-alpha                  | 4 +++-
 THANKS                        | 4 +++-
 am/check_macro.m4             | 4 +++-
 am/check_member.m4            | 4 +++-
 am/check_weak_refs.m4         | 4 +++-
 am/config_paths.m4            | 4 +++-
 am/enable.m4                  | 4 +++-
 am/flushleft.m4               | 4 +++-
 am/krb5.m4                    | 4 +++-
 am/libcurses.m4               | 4 +++-
 am/libidn.m4                  | 3 ++-
 am/readline.m4                | 3 ++-
 am/result.m4                  | 4 +++-
 bootstrap.conf                | 3 ++-
 cfg.mk                        | 3 ++-
 configure.ac                  | 4 +++-
 doc/Makefile.am               | 4 +++-
 doc/inetutils.texi            | 4 +++-
 ftp/Makefile.am               | 4 +++-
 ftp/cmds.c                    | 5 ++++-
 ftp/cmdtab.c                  | 5 ++++-
 ftp/domacro.c                 | 5 ++++-
 ftp/extern.h                  | 5 ++++-
 ftp/ftp.c                     | 5 ++++-
 ftp/ftp_var.h                 | 5 ++++-
 ftp/main.c                    | 5 ++++-
 ftp/ruserpass.c               | 5 ++++-
 ftpd/Makefile.am              | 4 +++-
 ftpd/auth.c                   | 4 +++-
 ftpd/conf.c                   | 4 +++-
 ftpd/extern.h                 | 5 ++++-
 ftpd/ftpcmd.y                 | 5 ++++-
 ftpd/ftpd.c                   | 5 ++++-
 ftpd/logwtmp.c                | 4 +++-
 ftpd/pam.c                    | 4 +++-
 ftpd/popen.c                  | 5 ++++-
 ftpd/server_mode.c            | 4 +++-
 ifconfig/Makefile.am          | 4 +++-
 ifconfig/changeif.c           | 4 +++-
 ifconfig/flags.c              | 4 +++-
 ifconfig/flags.h              | 4 +++-
 ifconfig/ifconfig.c           | 4 +++-
 ifconfig/ifconfig.h           | 4 +++-
 ifconfig/options.c            | 4 +++-
 ifconfig/options.h            | 4 +++-
 ifconfig/printif.c            | 4 +++-
 ifconfig/printif.h            | 4 +++-
 ifconfig/system.c             | 4 +++-
 ifconfig/system.h             | 4 +++-
 ifconfig/system/Makefile.am   | 4 +++-
 ifconfig/system/bsd.c         | 4 +++-
 ifconfig/system/bsd.h         | 4 +++-
 ifconfig/system/generic.c     | 4 +++-
 ifconfig/system/generic.h     | 4 +++-
 ifconfig/system/hurd.c        | 3 ++-
 ifconfig/system/hurd.h        | 3 ++-
 ifconfig/system/linux.c       | 4 +++-
 ifconfig/system/linux.h       | 4 +++-
 ifconfig/system/qnx.c         | 4 +++-
 ifconfig/system/qnx.h         | 4 +++-
 ifconfig/system/solaris.c     | 4 +++-
 ifconfig/system/solaris.h     | 4 +++-
 libicmp/Makefile.am           | 4 +++-
 libicmp/icmp.h                | 4 +++-
 libicmp/icmp_address.c        | 4 +++-
 libicmp/icmp_cksum.c          | 4 +++-
 libicmp/icmp_echo.c           | 4 +++-
 libicmp/icmp_timestamp.c      | 4 +++-
 libinetutils/Makefile.am      | 4 +++-
 libinetutils/argcv.c          | 4 +++-
 libinetutils/argcv.h          | 4 +++-
 libinetutils/cleansess.c      | 4 +++-
 libinetutils/daemon.c         | 4 +++-
 libinetutils/defauthors.c     | 3 ++-
 libinetutils/des_rw.c         | 4 +++-
 libinetutils/if_index.c       | 4 +++-
 libinetutils/kcmd.c           | 4 +++-
 libinetutils/kerberos5.c      | 3 ++-
 libinetutils/kerberos5_def.h  | 3 ++-
 libinetutils/krcmd.c          | 4 +++-
 libinetutils/libinetutils.h   | 4 +++-
 libinetutils/localhost.c      | 4 +++-
 libinetutils/logwtmp.c        | 4 +++-
 libinetutils/logwtmpko.c      | 4 +++-
 libinetutils/setsig.c         | 4 +++-
 libinetutils/shishi.c         | 4 +++-
 libinetutils/shishi_def.h     | 4 +++-
 libinetutils/tftpsubs.c       | 4 +++-
 libinetutils/tftpsubs.h       | 4 +++-
 libinetutils/ttymsg.c         | 4 +++-
 libinetutils/utmp_init.c      | 5 +++--
 libinetutils/utmp_logout.c    | 4 +++-
 libls/Makefile.am             | 4 +++-
 libls/cmp.c                   | 4 +++-
 libls/extern.h                | 4 +++-
 libls/fts.c                   | 4 +++-
 libls/fts.h                   | 4 +++-
 libls/ls.c                    | 4 +++-
 libls/ls.h                    | 4 +++-
 libls/print.c                 | 4 +++-
 libls/stat_flags.c            | 4 +++-
 libls/util.c                  | 4 +++-
 libtelnet/Makefile.am         | 4 +++-
 libtelnet/auth-proto.h        | 4 +++-
 libtelnet/auth.c              | 5 ++++-
 libtelnet/auth.h              | 4 +++-
 libtelnet/enc-proto.h         | 4 +++-
 libtelnet/enc_des.c           | 5 ++++-
 libtelnet/encrypt.c           | 5 ++++-
 libtelnet/encrypt.h           | 4 +++-
 libtelnet/forward.c           | 4 +++-
 libtelnet/genget.c            | 5 ++++-
 libtelnet/genget.h            | 3 ++-
 libtelnet/getent.c            | 5 ++++-
 libtelnet/kerberos.c          | 5 ++++-
 libtelnet/kerberos5.c         | 5 ++++-
 libtelnet/key-proto.h         | 4 +++-
 libtelnet/misc-proto.h        | 4 +++-
 libtelnet/misc.c              | 4 +++-
 libtelnet/misc.h              | 4 +++-
 libtelnet/read_passwd.c       | 4 +++-
 libtelnet/shishi.c            | 4 +++-
 man/Makefile.am               | 3 ++-
 paths                         | 4 +++-
 ping/Makefile.am              | 4 +++-
 ping/libping.c                | 3 ++-
 ping/ping.c                   | 4 +++-
 ping/ping.h                   | 3 ++-
 ping/ping6.c                  | 4 +++-
 ping/ping6.h                  | 4 +++-
 ping/ping_address.c           | 4 +++-
 ping/ping_common.c            | 4 +++-
 ping/ping_common.h            | 4 +++-
 ping/ping_echo.c              | 4 +++-
 ping/ping_impl.h              | 4 +++-
 ping/ping_router.c            | 4 +++-
 ping/ping_timestamp.c         | 4 +++-
 src/Makefile.am               | 4 +++-
 src/dnsdomainname.c           | 3 ++-
 src/hostname.c                | 3 ++-
 src/inetd.c                   | 5 ++++-
 src/logger.c                  | 3 ++-
 src/logprio.h                 | 3 ++-
 src/rcp.c                     | 5 ++++-
 src/rexec.c                   | 3 ++-
 src/rexecd.c                  | 5 ++++-
 src/rlogin.c                  | 5 ++++-
 src/rlogind.c                 | 5 ++++-
 src/rsh.c                     | 5 ++++-
 src/rshd.c                    | 5 ++++-
 src/syslogd.c                 | 4 +++-
 src/tftp.c                    | 5 ++++-
 src/tftpd.c                   | 5 ++++-
 src/traceroute.c              | 3 ++-
 src/uucpd.c                   | 5 ++++-
 summary.sh.in                 | 3 ++-
 talk/Makefile.am              | 4 +++-
 talk/ctl.c                    | 5 ++++-
 talk/ctl_transact.c           | 5 ++++-
 talk/display.c                | 5 ++++-
 talk/get_addrs.c              | 5 ++++-
 talk/get_names.c              | 5 ++++-
 talk/init_disp.c              | 5 ++++-
 talk/invite.c                 | 5 ++++-
 talk/io.c                     | 5 ++++-
 talk/look_up.c                | 5 ++++-
 talk/msgs.c                   | 5 ++++-
 talk/talk.c                   | 5 ++++-
 talk/talk.h                   | 5 ++++-
 talk/talk_ctl.h               | 5 ++++-
 talkd/Makefile.am             | 4 +++-
 talkd/acl.c                   | 4 +++-
 talkd/announce.c              | 5 ++++-
 talkd/intalkd.h               | 4 +++-
 talkd/print.c                 | 4 +++-
 talkd/process.c               | 4 +++-
 talkd/table.c                 | 4 +++-
 talkd/talkd.c                 | 4 +++-
 telnet/Makefile.am            | 4 +++-
 telnet/authenc.c              | 5 ++++-
 telnet/commands.c             | 5 ++++-
 telnet/defines.h              | 5 ++++-
 telnet/externs.h              | 5 ++++-
 telnet/general.h              | 5 ++++-
 telnet/krb4-proto.h           | 5 ++++-
 telnet/main.c                 | 5 ++++-
 telnet/network.c              | 5 ++++-
 telnet/ring.c                 | 5 ++++-
 telnet/ring.h                 | 5 ++++-
 telnet/sys_bsd.c              | 5 ++++-
 telnet/telnet.c               | 5 ++++-
 telnet/terminal.c             | 5 ++++-
 telnet/tn3270.c               | 5 ++++-
 telnet/types.h                | 5 ++++-
 telnet/utilities.c            | 5 ++++-
 telnetd/Makefile.am           | 4 +++-
 telnetd/pty.c                 | 4 +++-
 telnetd/slc.c                 | 5 ++++-
 telnetd/state.c               | 5 ++++-
 telnetd/telnetd.c             | 5 ++++-
 telnetd/telnetd.h             | 4 +++-
 telnetd/term.c                | 4 +++-
 telnetd/termstat.c            | 5 ++++-
 telnetd/utility.c             | 5 ++++-
 tests/Makefile.am             | 3 ++-
 tests/addrpeek.c              | 3 ++-
 tests/dnsdomainname.sh        | 3 ++-
 tests/ftp-localhost.sh        | 3 ++-
 tests/ftp-parser.sh           | 3 ++-
 tests/hostname.sh             | 3 ++-
 tests/identify.c              | 3 ++-
 tests/ifconfig.sh             | 3 ++-
 tests/ifconfig_modes.sh       | 3 ++-
 tests/inetd.sh                | 3 ++-
 tests/libls.sh                | 3 ++-
 tests/localhost.c             | 3 ++-
 tests/ls.c                    | 3 ++-
 tests/ping-localhost.sh       | 3 ++-
 tests/readutmp.c              | 3 ++-
 tests/runtime-ipv6.c          | 2 +-
 tests/syslogd.sh              | 3 ++-
 tests/tcpget.c                | 3 ++-
 tests/telnet-localhost.sh     | 3 ++-
 tests/test-snprintf.c         | 2 +-
 tests/tftp.sh                 | 3 ++-
 tests/tools.sh.in             | 3 ++-
 tests/traceroute-localhost.sh | 3 ++-
 tests/utmp.sh                 | 3 ++-
 tests/waitdaemon.c            | 3 ++-
 whois/Makefile.am             | 4 +++-
 whois/as_del_list             | 4 +++-
 whois/data.h                  | 3 ++-
 whois/ip6_del_list            | 2 +-
 whois/ip_del_list             | 4 +++-
 whois/make_as_del.pl          | 4 +++-
 whois/make_ip6_del.pl         | 2 +-
 whois/make_ip_del.pl          | 4 +++-
 whois/make_tld_serv.pl        | 4 +++-
 whois/tld_serv_list           | 4 +++-
 whois/whois.c                 | 4 +++-
 whois/whois.h                 | 4 +++-
 246 files changed, 751 insertions(+), 247 deletions(-)


hooks/post-receive
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