version-etc: new year

* lib/version-etc.c (COPYRIGHT_YEAR): Bump to 2014.

Signed-off-by: Eric Blake <eblake@redhat.com>
maint: update copyright

I ran 'make update-copyright'.

Signed-off-by: Eric Blake <eblake@redhat.com>
doc: update main copyright year

* doc/gnulib.texi: Update copyright date.
autoupdate
maint: fix public-submodule-commit to work with newer git

* top/maint.mk (public-submodule-commit): Remove excess quoting.
We were over-quoting the test arguments, and somewhere prior to
version 1.8.5.2.229, git stopped removing those excess quotes,
which made the test fail, since the unexpanded strings would
always differ; using GIT_TRACE=1 confirmed that the git merge-base
command wasn't even being run.
relocatable-script: remove unused code

Problem reported by Reuben Thomas in:
http://lists.gnu.org/archive/html/bug-gnulib/2013-12/msg00117.html
* build-aux/relocatable.sh.in (func_tmpdir): Remove unused function.
autoupdate
manywarnings: remove -Wmudflap

* m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC): Remove -Wmudflap, since
it is no longer supported in gcc-4.9-to-be.
freading: declare with attribute "pure"

* lib/freading.h (freading): Declare with the "pure" attribute.