[PATCH 08/12] refs.c: replace some use of starts_with() with skip_prefix()

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

It's out of context, but there are neither changes in buffer nor buf
between two chunks.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 refs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/refs.c b/refs.c
index 5e378bc..1fb658f 100644
--- a/refs.c
+++ b/refs.c
@@ -1339,7 +1339,7 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
 	for (;;) {
 		char path[PATH_MAX];
 		struct stat st;
-		char *buf;
+		const char *buf;
 		int fd;
 
 		if (--depth < 0)
@@ -1415,7 +1415,7 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
 		/*
 		 * Is it a symbolic ref?
 		 */
-		if (!starts_with(buffer, "ref:")) {
+		if ((buf = skip_prefix(buffer, "ref:")) == NULL) {
 			/*
 			 * Please note that FETCH_HEAD has a second
 			 * line containing other data.
@@ -1430,7 +1430,6 @@ const char *resolve_ref_unsafe(const char *refname, unsigned char *sha1, int rea
 		}
 		if (flag)
 			*flag |= REF_ISSYMREF;
-		buf = buffer + 4;
 		while (isspace(*buf))
 			buf++;
 		if (check_refname_format(buf, REFNAME_ALLOW_ONELEVEL)) {
-- 
1.8.5.1.208.g019362e