copyright 2017 in synced files

[Karl Berry]

As usual, the copyright year update included all synced files (including
licenses), and so as usual everything is now out of sync.

Can the changes in these files be reverted please?  --thanks, karl.

 build-aux/config.guess Sun Jan  1 09:52:15 2017
 build-aux/config.sub   Sun Jan  1 09:52:15 2017
 build-aux/ar-lib       Sun Jan  1 09:52:15 2017
 build-aux/compile      Sun Jan  1 09:52:15 2017
 build-aux/depcomp      Sun Jan  1 09:52:15 2017
 build-aux/mdate-sh     Sun Jan  1 09:52:15 2017
 build-aux/texinfo.tex  Sun Jan  1 09:52:15 2017
 doc/maintain.texi      Sun Jan  1 09:52:15 2017
 doc/standards.texi     Sun Jan  1 09:52:15 2017
 doc/make-stds.texi     Sun Jan  1 09:52:15 2017
 doc/gnu-oids.texi      Sun Jan  1 09:52:15 2017
 doc/fdl.texi   Sun Jan  1 09:52:15 2017
 doc/COPYING.LESSERv3   Sun Jan  1 09:52:15 2017
 doc/COPYING.LESSERv2   Sun Jan  1 09:52:15 2017
 doc/COPYINGv3  Sun Jan  1 09:52:15 2017
 doc/COPYINGv2  Sun Jan  1 09:52:15 2017
 doc/lgpl-2.1.texi      Sun Jan  1 09:52:15 2017
 doc/gpl-2.0.texi       Sun Jan  1 09:52:15 2017
 doc/agpl-3.0.texi      Sun Jan  1 09:52:15 2017
 doc/fdl-1.3.texi       Sun Jan  1 09:52:15 2017
 doc/gpl-3.0.texi       Sun Jan  1 09:52:15 2017
 doc/lgpl-3.0.texi      Sun Jan  1 09:52:15 2017
 m4/codeset.m4  Sun Jan  1 09:52:16 2017
 m4/gettext.m4  Sun Jan  1 09:52:16 2017
 m4/iconv.m4    Sun Jan  1 09:52:16 2017
 m4/intl.m4     Sun Jan  1 09:52:16 2017
 m4/intldir.m4  Sun Jan  1 09:52:16 2017
 m4/intlmacosx.m4       Sun Jan  1 09:52:16 2017
 m4/lcmessage.m4        Sun Jan  1 09:52:16 2017
 m4/nls.m4      Sun Jan  1 09:52:16 2017
 m4/po.m4       Sun Jan  1 09:52:16 2017