gettext: update to 0.18.1

[Bruno Haible]

gettext 0.18.1 was released today. This patch upgrades the gnulib module.
The macros are already up-to-date (only iconv.m4 changed).


2010-06-04  Bruno Haible  <address@hidden>

        Update to GNU gettext 0.18.1.
        * modules/gettext (configure.ac): Require gettext infrastructure from
        version 0.18.1.

--- modules/gettext.orig        Sat Jun  5 01:59:49 2010
+++ modules/gettext     Sat Jun  5 01:24:48 2010
@@ -39,7 +39,7 @@
 
 configure.ac:
 AM_GNU_GETTEXT([external])
-AM_GNU_GETTEXT_VERSION([0.18])
+AM_GNU_GETTEXT_VERSION([0.18.1])
 
 Makefile.am:
 # This is for those projects which use "gettextize --intl" to put a source-code