maint: write-file-hooks -> before-save-hook write-file-hooks is obsolete since Emacs 22.1 (released June 2007) and it's time to use the recommended replacement. Problem reported by Glenn Morris in: https://lists.gnu.org/r/bug-gnulib/2018-03/msg00008.html * build-aux/announce-gen, build-aux/bootstrap: * build-aux/do-release-commit-and-tag, build-aux/gendocs.sh: * build-aux/git-version-gen, build-aux/gitlog-to-changelog: * build-aux/gnu-web-doc-update, build-aux/gnupload: * build-aux/move-if-change, build-aux/prefix-gnulib-mk: * build-aux/update-copyright, build-aux/useless-if-before-free: * build-aux/vc-list-files: Update hook usage for files where Gnulib is the canonical source.

--- a/build-aux/git-version-gen	Tue Mar 06 20:29:14 2018 -0800
+++ b/build-aux/git-version-gen	Wed Mar 07 00:29:38 2018 -0800
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Print a version string.
-scriptversion=2017-09-13.06; # UTC
+scriptversion=2018-03-07.03; # UTC
 
 # Copyright (C) 2007-2018 Free Software Foundation, Inc.
 #
@@ -219,7 +219,7 @@
 printf %s "$v"
 
 # Local variables:
-# eval: (add-hook 'write-file-hooks 'time-stamp)
+# eval: (add-hook 'before-save-hook 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
 # time-stamp-time-zone: "UTC0"