From 8872f27b8773dfe7d3dbb440c27d4a5a9dbc8470 Mon Sep 17 00:00:00 2001
From: Junio C Hamano <junkio@cox.net>
Date: Fri, 16 Dec 2005 23:48:14 -0800
Subject: [PATCH] Revert "refs.c: off-by-one fix."

This reverts 06bf6ac4248e834a229027908d405f5e42ac96d7 commit.
---
 refs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/refs.c b/refs.c
index 7a2c56e64..0d63c1fca 100644
--- a/refs.c
+++ b/refs.c
@@ -348,11 +348,8 @@ int check_ref_format(const char *ref)
 			if (level < 2)
 				return -1; /* at least of form "heads/blah" */
 
-			/* Do not allow ref name to end in "HEAD"
-			 * Note that cp is poiting at one past NUL at the end.
-			 * i.e. cp[-1] = NUL.
-			 */
-			if (5 <= cp - ref && !strcmp(cp - 5, "HEAD"))
+			/* do not allow ref name to end in "HEAD" */
+			if (cp - ref > 4 && !strcmp(cp - 4, "HEAD"))
 				return -1;
 
 			return 0;
-- 
2.30.2