gettext

c76ad63e - doc: Update after Automake changed.

doc: Update after Automake changed. * gettext-tools/doc/gettextize.texi: Update now that Automake with option 'gnu' no longer requires ABOUT-NLS. Cf. <https://git.savannah.gnu.org/gitweb/?p=automake.git;a=commitdiff;h=a2def8cdef>.