X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-log.c;h=911fd659906ebe87bf0adcd17519dd97777fb948;hb=d36f8679e94c2a0d4d15d6adcea434634af6d627;hp=f4975cf35f7f1555739f7657ee62ed983d18cb84;hpb=10d9d887ecdc81197162d7bbe5dfc0d028498fd6;p=git.git

diff --git a/builtin-log.c b/builtin-log.c
index f4975cf35..911fd6599 100644
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -461,7 +461,7 @@ static int extra_cc_alloc;
 static void add_header(const char *value)
 {
 	int len = strlen(value);
-	while (value[len - 1] == '\n')
+	while (len && value[len - 1] == '\n')
 		len--;
 	if (!strncasecmp(value, "to: ", 4)) {
 		ALLOC_GROW(extra_to, extra_to_nr + 1, extra_to_alloc);