Upgrade gnulib.

* gnulib: Upgrade from master.
	* lib/.cvsignore, lib/.gitignore, m4/.cvsignore, m4/.gitignore:
	Regen.

m4/.cvsignore

@@ -1,3 +1,4 @@
+00gnulib.m4
 absolute-header.m4
 argmatch.m4
 config-h.m4
@@ -29,11 +30,16 @@ lib-ld.m4
 lib-link.m4
 lib-prefix.m4
 localcharset.m4
+locale-fr.m4
+locale-ja.m4
+locale-zh.m4
 longlong.m4
 malloc.m4
 mbrtowc.m4
+mbsinit.m4
 mbstate_t.m4
 mbswidth.m4
+multiarch.m4
 nls.m4
 po.m4
 progtest.m4