Merge branch 'ks/commit-abort-on-empty-message-fix' into maint

"git commit" when seeing an totally empty message said "you did not
edit the message", which is clearly wrong.  The message has been
corrected.

* ks/commit-abort-on-empty-message-fix:
commit: check for empty message before the check for untouched template

diff --cc builtin/commit.c
Simple merge