[PATCH] worktree: usage: denote <branch> as optional with 'add'

[Sidhant Sharma <tigerkid001@gmail.com>]

Although 1eb07d8 (worktree: add: auto-vivify new branch when
<branch> is omitted, 2015-07-06) updated the documentation when
<branch> became optional, it neglected to update the in-code
usage message. Fix this oversight.

Reported-by: ch3cooli@gmail.com
Signed-off-by: Sidhant Sharma <tigerkid001@gmail.com>
---
 builtin/worktree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/worktree.c b/builtin/worktree.c
index 71bb770..33d2d37 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -10,7 +10,7 @@
 #include "refs.h"

 static const char * const worktree_usage[] = {
-	N_("git worktree add [<options>] <path> <branch>"),
+	N_("git worktree add [<options>] <path> [<branch>]"),
 	N_("git worktree prune [<options>]"),
 	NULL
 };
--
2.6.2