gnulib: update

In preparation for Bison 3.4, revert to the version before this
commit:

    commit 03752516b21091cf3c4beea7e8b9bcad462d50ed
    Author: John Darrington <john@darrington.wattle.id.au>
    Date:   Sun May 12 00:42:36 2019 +0200

    version-etc: Ease translation.

    * lib/version-etc.c (version_etc_arn, emit_bug_reporting_address):
    Move URLs and formatting newlines out of translatable string.

because it changes the messages for --version, translated in
gnulib.po.  These changes are not yet available on the translation
project, so we would have a regression in the set of translated
strings.

1 files changed, 0 insertions, 0 deletions

diff --git a/gnulib b/gnulib
-Subproject 03752516b21091cf3c4beea7e8b9bcad462d50e
+Subproject d654989d8bad1a82c4dcbd80204f20147408106