branch: trivial style fix

Signed-off-by: Felipe Contreras <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: felipec

branch.c

@@ -307,7 +307,7 @@ void create_branch(const char *head,
 			 start_name);
 
 	if (real_ref && track)
-		setup_tracking(ref.buf+11, real_ref, track, quiet);
+		setup_tracking(ref.buf + 11, real_ref, track, quiet);
 
 	if (!dont_change_ref)
 		if (write_ref_sha1(lock, sha1, msg) < 0)