Merge branch 'maint'

* maint:
  pack-objects: split implications of --all-progress from progress activation
  instaweb: restart server if already running
  prune-packed: only show progress when stderr is a tty

Conflicts:
	builtin-pack-objects.c

builtin-send-pack.c

@@ -40,7 +40,7 @@ static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *ext
 	 */
 	const char *argv[] = {
 		"pack-objects",
-		"--all-progress",
+		"--all-progress-implied",
 		"--revs",
 		"--stdout",
 		NULL,