Do not verify reverted/cherry-picked/rebased patches.

The original committer may have used validation criteria that is less
stricter than yours.  You do not want to lose the changes even if they
are done in substandard way from your 'commit -v' verifier's point of
view.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

git-revert-script

@@ -158,7 +158,7 @@ echo >&2 "Finished one $me."
 
 case "$no_commit" in
 '')
-	git commit -F .msg
+	git-commit-script -n -F .msg
 	rm -f .msg
 	;;
 esac