Merge branch 'maint'

* maint:
  t7401: squelch garbage output
  Documentation/git-submodule: typofix
  Fix config key miscount in url.*.insteadOf
  Docs gitk: Explicitly mention the files that gitk uses (~/.gitk)
  Document -w option to shortlog
  bisect: report bad rev better

git-bisect.sh

@@ -159,9 +159,9 @@ bisect_state() {
 		shift
 		for rev in "$@"
 		do
-			rev=$(git rev-parse --verify "$rev^{commit}") ||
+			sha=$(git rev-parse --verify "$rev^{commit}") ||
 				die "Bad rev input: $rev"
-			bisect_write "$state" "$rev"
+			bisect_write "$state" "$sha"
 		done ;;
 	*,bad)
 		die "'git bisect bad' can take only one argument." ;;