From 3dbe9db01bd9c0b0701f72a631ac15b1791f6642 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Thu, 21 May 2015 00:45:51 -0400
Subject: for-each-ref: use skip_prefix instead of starts_with

This saves us having to maintain a magic number to skip past
the matched prefix.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 92bd2b2..2bd19ca 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -659,10 +659,12 @@ static void populate_value(struct refinfo *ref)
 		else if (starts_with(name, "symref"))
 			refname = ref->symref ? ref->symref : "";
 		else if (starts_with(name, "upstream")) {
+			const char *branch_name;
 			/* only local branches may have an upstream */
-			if (!starts_with(ref->refname, "refs/heads/"))
+			if (!skip_prefix(ref->refname, "refs/heads/",
+					 &branch_name))
 				continue;
-			branch = branch_get(ref->refname + 11);
+			branch = branch_get(branch_name);
 
 			refname = branch_get_upstream(branch, NULL);
 			if (!refname)
-- 
cgit v0.10.2-6-g49f6