vasnprintf: Avoid warnings from GCC's -Wsign-compare. Reported by Bjarni Ingi Gislason <bjarniig@rhi.hi.is> in <https://lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00105.html>. * lib/vasnprintf.c (VASNPRINTF): Cast 'count' from 'int' to 'unsigned int' before comparison with an unsigned value.

# See lib/git-merge-changelog.c for making this useful.
ChangeLog	merge=merge-changelog

# Run this to make 'git diff' on texinfo files give nicer hunk context:
#   git config diff.texinfo.funcname '^@node[	 ][	 ]*\\([^,][^,]*\\)'
*.texi* diff=texinfo