Merge branch 'maint-1.7.5' into maint

* maint-1.7.5:
  test: skip clean-up when running under --immediate mode
  "branch -d" can remove more than one branches

builtin/branch.c

@@ -19,7 +19,7 @@
 static const char * const builtin_branch_usage[] = {
 	"git branch [options] [-r | -a] [--merged | --no-merged]",
 	"git branch [options] [-l] [-f] <branchname> [<start-point>]",
-	"git branch [options] [-r] (-d | -D) <branchname>",
+	"git branch [options] [-r] (-d | -D) <branchname>...",
 	"git branch [options] (-m | -M) [<oldbranch>] <newbranch>",
 	NULL
 };