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Re: copyright years: mass-update every January 1
From: |
Joel E. Denny |
Subject: |
Re: copyright years: mass-update every January 1 |
Date: |
Fri, 14 Aug 2009 01:54:08 -0400 (EDT) |
User-agent: |
Alpine 1.00 (DEB 882 2007-12-20) |
On Thu, 13 Aug 2009, Eric Blake wrote:
> According to Akim Demaille on 8/13/2009 1:59 AM:
> >> - Copyright (C) 89, 90, 91, 1995-2006, 2008-2009 Free Software
> >> - Foundation, Inc.
> >> + Copyright (C) 89, 90, 91, 1995-2006, 2008-2009 Free Software
> >> Foundation, Inc.
> >
> > While at it, why not standardize everything to 4 digits (I don't think
> > we need to address the Y10k issues yet :), and to introduce intervals
> > where applicable? Is there some legal thingy that forbids it? It might
> > help making some lines smaller.
>
> Yes - see this post:
> http://lists.gnu.org/archive/html/bug-gnulib/2009-08/msg00184.html
>
> I'm not personally opposed to compressed years, but if you want the tool
> to output compressed years instead of longhand, it should be an option
> (and more importantly, we should also fix the tool to allow longhand years
> for maintainers that want longhand).
Below are some patches to implement that.
>From 75dd6c0c64ee03ebb4eb7b0b14cf8905b9ad65ad Mon Sep 17 00:00:00 2001
From: Joel E. Denny <address@hidden>
Date: Thu, 13 Aug 2009 22:40:34 -0400
Subject: [PATCH] update-copyright: convert 2-digit to 4-digit years
* build-aux/update-copyright: Implement and document.
* tests/test-update-copyright.sh: Update.
---
ChangeLog | 6 ++++++
build-aux/update-copyright | 13 +++++++++----
tests/test-update-copyright.sh | 36 ++++++++++++++++++------------------
3 files changed, 33 insertions(+), 22 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index d6c3670..8ceadbf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2009-08-14 Joel E. Denny <address@hidden>
+
+ update-copyright: convert 2-digit to 4-digit years
+ * build-aux/update-copyright: Implement and document.
+ * tests/test-update-copyright.sh: Update.
+
2009-08-13 Eric Blake <address@hidden>
test-dup2: fix bad assumption
diff --git a/build-aux/update-copyright b/build-aux/update-copyright
index 68440f8..fb1c7d2 100755
--- a/build-aux/update-copyright
+++ b/build-aux/update-copyright
@@ -1,7 +1,7 @@
#!/usr/bin/perl -0777 -pi
# Update an FSF copyright year list to include the current year.
-my $VERSION = '2009-08-06.01:08'; # UTC
+my $VERSION = '2009-08-14.02:23'; # UTC
# Copyright (C) 2009 Free Software Foundation, Inc.
#
@@ -26,9 +26,11 @@ my $VERSION = '2009-08-06.01:08'; # UTC
# maintainer-makefile module.
#
# Iff an FSF copyright statement is discovered in a file and the final
-# year is not the current year, the statement is updated for the new
-# year and reformatted to fit within 72 columns. A warning is printed
-# for every file for which no FSF copyright statement is discovered.
+# year is not the current year, then the statement is updated for the
+# new year, 2-digit years are converted to 4-digit years by prepending
+# "19", and the statement is reformatted to fit within 72 columns. A
+# warning is printed for every file for which no FSF copyright statement
+# is discovered.
#
# Each file's FSF copyright statement must be formated correctly in
# order to be recognized. For example, each of these is fine:
@@ -179,6 +181,9 @@ if (defined $stmt_re)
# Put spaces after commas.
$stmt =~ s/, ?/, /g;
+ # Convert 2-digit to 4-digit years.
+ $stmt =~ s/(\b\d\d\b)/19$1/g;
+
# Format within margin.
my $stmt_wrapped;
my $text_margin = $margin - length($prefix);
diff --git a/tests/test-update-copyright.sh b/tests/test-update-copyright.sh
index 9997df4..d0e3083 100755
--- a/tests/test-update-copyright.sh
+++ b/tests/test-update-copyright.sh
@@ -123,7 +123,7 @@ compare - $TMP.2 <<EOF || exit 1
EOF
compare - $TMP.3 <<EOF || exit 1
/*
- * Copyright © 90, 2005, 2007-2010 Free Software Foundation, Inc.
+ * Copyright © 1990, 2005, 2007-2010 Free Software Foundation, Inc.
*/
EOF
compare - $TMP.4 <<EOF || exit 1
@@ -284,9 +284,9 @@ UPDATE_COPYRIGHT_YEAR=2010 \
compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
- Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- 2009-2010 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2008, 2009-2010 Free Software Foundation, Inc.
EOF
rm $TMP*
@@ -305,9 +305,9 @@ UPDATE_COPYRIGHT_YEAR=2010 \
compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
- # Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995,
- # 1996, 1997, 98, 1999, 2000, 2001, 2002, 2003, 2004,
- # 2005, 2006, 2007, 2008, 2009-2010 Free Software
+ # Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994,
+ # 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ # 2004, 2005, 2006, 2007, 2008, 2009-2010 Free Software
# Foundation, Inc.
EOF
rm $TMP*
@@ -327,8 +327,8 @@ UPDATE_COPYRIGHT_YEAR=2010 \
compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
tr @ '\015' > $TMP-exp <<\EOF
-Rem Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98,@
-Rem 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
+Rem Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
+Rem 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
Rem 2009-2010 Free Software Foundation, Inc.@
EOF
compare $TMP-exp $TMP || exit 1
@@ -349,9 +349,9 @@ UPDATE_COPYRIGHT_YEAR=2010 \
compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
- Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009-2010 Free
- Software Foundation, Inc.
+ Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009-2010
+ Free Software Foundation, Inc.
EOF
rm $TMP*
@@ -371,7 +371,7 @@ cat > $TMP.space <<EOF
2009 Free Software Foundation, Inc. */
EOF
cat > $TMP.single-line <<EOF
-/* Copyright 87, 88, 1991, 1992 Free Software Foundation, Inc. */
+/* Copyright 87, 1991, 1992 Free Software Foundation, Inc. */
EOF
cat > $TMP.single-line-wrapped <<EOF
/* Copyright 1988, 1991, 1992, 1993 Free Software Foundation, Inc. */
@@ -389,17 +389,17 @@ UPDATE_COPYRIGHT_YEAR=2010 \
compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
compare - $TMP.star <<EOF || exit 1
-/* Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98,
- * 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+/* Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ * 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
* 2009-2010 Free Software Foundation, Inc. */
EOF
compare - $TMP.space <<EOF || exit 1
- /*Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ /*Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
2009-2010 Free Software Foundation, Inc. */
EOF
compare - $TMP.single-line <<EOF || exit 1
-/* Copyright 87, 88, 1991, 1992, 2010 Free Software Foundation, Inc. */
+/* Copyright 1987, 1991, 1992, 2010 Free Software Foundation, Inc. */
EOF
compare - $TMP.single-line-wrapped <<EOF || exit 1
/* Copyright 1988, 1991, 1992, 1993, 2010 Free Software Foundation,
--
1.5.4.3
>From 95c6e15a4bf7cffb02d7eed528acff69addd49fe Mon Sep 17 00:00:00 2001
From: Joel E. Denny <address@hidden>
Date: Fri, 14 Aug 2009 01:10:08 -0400
Subject: [PATCH] update-copyright: much ado about intervals
* build-aux/update-copyright: Implement and document
UPDATE_COPYRIGHT_USE_INTERVALS to control expansion and collapse
of copyright year intervals.
Also, document UPDATE_COPYRIGHT_YEAR.
* tests/test-update-copyright.sh: Test it.
---
ChangeLog | 9 ++++
build-aux/update-copyright | 51 +++++++++++++++-------
tests/test-update-copyright.sh | 93 ++++++++++++++++++++++++++++++++++++---
3 files changed, 129 insertions(+), 24 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 8ceadbf..9437a90 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
2009-08-14 Joel E. Denny <address@hidden>
+ update-copyright: much ado about intervals
+ * build-aux/update-copyright: Implement and document
+ UPDATE_COPYRIGHT_USE_INTERVALS to control expansion and collapse
+ of copyright year intervals.
+ Also, document UPDATE_COPYRIGHT_YEAR.
+ * tests/test-update-copyright.sh: Test it.
+
+2009-08-14 Joel E. Denny <address@hidden>
+
update-copyright: convert 2-digit to 4-digit years
* build-aux/update-copyright: Implement and document.
* tests/test-update-copyright.sh: Update.
diff --git a/build-aux/update-copyright b/build-aux/update-copyright
index fb1c7d2..d8445fe 100755
--- a/build-aux/update-copyright
+++ b/build-aux/update-copyright
@@ -1,7 +1,7 @@
#!/usr/bin/perl -0777 -pi
# Update an FSF copyright year list to include the current year.
-my $VERSION = '2009-08-14.02:23'; # UTC
+my $VERSION = '2009-08-14.05:03'; # UTC
# Copyright (C) 2009 Free Software Foundation, Inc.
#
@@ -92,6 +92,16 @@ my $VERSION = '2009-08-14.02:23'; # UTC
# within the FSF copyright statement.
# 7. Each copyright year is 2 or 4 digits, and years are separated by
# commas or dashes. Whitespace may occur after commas.
+#
+# Environment variables:
+#
+# 1. If UPDATE_COPYRIGHT_USE_INTERVALS=1, every series of consecutive
+# copyright years (such as 90, 1991, 1992-2007, 2008) in an updated
+# FSF copyright statement is collapsed to a single interval (such
+# as 1990-2008). If unset or set to 0, all existing copyright year
+# intervals are expanded.
+# 2. For testing purposes, you can set the assumed current year in
+# UPDATE_COPYRIGHT_YEAR.
use strict;
use warnings;
@@ -138,7 +148,7 @@ while (/(^|\n)(.{0,$prefix_max})$copyright_re/g)
$holder_re =~ s/\s/$ws_re/g;
my $stmt_remainder_re =
"(?:$ws_re$circle_c_re)?"
- . "$ws_re(?:(?:\\d\\d)?\\d\\d(,$ws_re?|-))*"
+ . "$ws_re(?:(?:\\d\\d)?\\d\\d(?:,$ws_re?|-))*"
. "((?:\\d\\d)?\\d\\d)$ws_re$holder_re";
if (/\G$stmt_remainder_re/)
{
@@ -151,8 +161,7 @@ if (defined $stmt_re)
{
/$stmt_re/ or die; # Should never die.
my $stmt = $1;
- my $sep = $2 ? $2 : "";
- my $final_year_orig = $3;
+ my $final_year_orig = $2;
# Handle two-digit year numbers like "98" and "99".
my $final_year = $final_year_orig;
@@ -162,18 +171,7 @@ if (defined $stmt_re)
if ($final_year != $this_year)
{
# Update the year.
- if ($sep eq '-' && $final_year + 1 == $this_year)
- {
- $stmt =~ s/$final_year_orig/$this_year/;
- }
- elsif ($sep ne '-' && $final_year + 1 == $this_year)
- {
- $stmt =~ s/$final_year_orig/$final_year-$this_year/;
- }
- else
- {
- $stmt =~ s/$final_year_orig/$final_year, $this_year/;
- }
+ $stmt =~ s/$final_year_orig/$final_year, $this_year/;
# Normalize all whitespace including newline-prefix sequences.
$stmt =~ s/$ws_re/ /g;
@@ -184,6 +182,27 @@ if (defined $stmt_re)
# Convert 2-digit to 4-digit years.
$stmt =~ s/(\b\d\d\b)/19$1/g;
+ # Make the use of intervals consistent.
+ if (!$ENV{UPDATE_COPYRIGHT_USE_INTERVALS})
+ {
+ $stmt =~ s/(\d{4})-(\d{4})/join(', ', $1..$2)/eg;
+ }
+ else
+ {
+ $stmt =~
+ s/
+ (\d{4})
+ (?:
+ (,\ |-)
+ ((??{
+ if ($2 eq '-') { '\d{4}'; }
+ elsif (!$3) { $1 + 1; }
+ else { $3 + 1; }
+ }))
+ )+
+ /$1-$3/gx;
+ }
+
# Format within margin.
my $stmt_wrapped;
my $text_margin = $margin - length($prefix);
diff --git a/tests/test-update-copyright.sh b/tests/test-update-copyright.sh
index d0e3083..ac47b9b 100755
--- a/tests/test-update-copyright.sh
+++ b/tests/test-update-copyright.sh
@@ -107,7 +107,7 @@ Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
# Foundation, Inc.
EOF
-UPDATE_COPYRIGHT_YEAR=2010 \
+UPDATE_COPYRIGHT_YEAR=2010 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
compare /dev/null $TMP-stdout || exit 1
compare - $TMP-stderr <<EOF || exit 1
@@ -145,6 +145,52 @@ Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
# Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
EOF
+UPDATE_COPYRIGHT_YEAR=2011 \
+ update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: FSF copyright statement not found
+$TMP.5: warning: FSF copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010,
+2011 Free Software Foundation, Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+# Free Software Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright © 1990, 2005, 2007, 2008, 2009, 2010, 2011 Free
+ * Software Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+
+Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+Free Software Foundation, Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+# Free Software Foundation, Inc.
+EOF
+
rm $TMP*
## -------------- ##
@@ -164,6 +210,13 @@ compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
EOF
+UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
+EOF
rm $TMP*
## ------------------ ##
@@ -209,6 +262,14 @@ compare - $TMP <<EOF || exit 1
#### 1985, 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
#### 2006, 2007, 2008, 2010 Free Software Foundation, Inc.
EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976-1988, 1999-2008, 2010-2011 Free Software
+#### Foundation, Inc.
+EOF
rm $TMP*
## ------------------- ##
@@ -286,7 +347,15 @@ compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
- 2007, 2008, 2009-2010 Free Software Foundation, Inc.
+ 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
+ Inc.
EOF
rm $TMP*
@@ -296,7 +365,7 @@ rm $TMP*
TMP=$TMP_BASE-unusual-ws
cat > $TMP <<EOF
- # Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996,
1997,
+ # Copyright (C) 87-88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
# 98, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008,
# 2009 Free Software Foundation, Inc.
EOF
@@ -307,7 +376,15 @@ compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
# Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994,
# 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- # 2004, 2005, 2006, 2007, 2008, 2009-2010 Free Software
+ # 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+ # Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+ update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+ # Copyright (C) 1987-1988, 1991-2011 Free Software
# Foundation, Inc.
EOF
rm $TMP*
@@ -329,7 +406,7 @@ compare /dev/null $TMP-stderr || exit 1
tr @ '\015' > $TMP-exp <<\EOF
Rem Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
Rem 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
-Rem 2009-2010 Free Software Foundation, Inc.@
+Rem 2009, 2010 Free Software Foundation, Inc.@
EOF
compare $TMP-exp $TMP || exit 1
rm $TMP*
@@ -350,7 +427,7 @@ compare /dev/null $TMP-stdout || exit 1
compare /dev/null $TMP-stderr || exit 1
compare - $TMP <<EOF || exit 1
Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009-2010
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
EOF
rm $TMP*
@@ -391,12 +468,12 @@ compare /dev/null $TMP-stderr || exit 1
compare - $TMP.star <<EOF || exit 1
/* Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
* 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- * 2009-2010 Free Software Foundation, Inc. */
+ * 2009, 2010 Free Software Foundation, Inc. */
EOF
compare - $TMP.space <<EOF || exit 1
/*Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- 2009-2010 Free Software Foundation, Inc. */
+ 2009, 2010 Free Software Foundation, Inc. */
EOF
compare - $TMP.single-line <<EOF || exit 1
/* Copyright 1987, 1991, 1992, 2010 Free Software Foundation, Inc. */
--
1.5.4.3