gettext: Update to version 0.22.5

gettext: Update to version 0.22.5

- Update from version 0.22.4 to 0.22.5
- Update of rootfile
- Changelog
    0.22.5
	* The replacements for the printf()/fprintf()/... functions that are
	  provided through <libintl.h> on native Windows and NetBSD now enable
	  GCC's format string analysis (-Wformat).
	* Bug fixes:
	  - xgettext's processing of Vala files with printf method invocations has
	    been corrected (regression in 0.22).
	  - Build fixes on macOS.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>