Merge branch 'sg/commit-cleanup-scissors' into maint

"git commit --cleanup=scissors" was not careful enough to protect
against getting fooled by a line that looked like scissors.

* sg/commit-cleanup-scissors:
  commit: cope with scissors lines in commit message

1 files changed, 5 insertions, 4 deletions

diff --git a/wt-status.c b/wt-status.c
index 38cb165f12..078a472743 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -823,10 +823,11 @@ void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 	const char *p;
 	struct strbuf pattern = STRBUF_INIT;
 
-	strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
-	p = strstr(buf->buf, pattern.buf);
-	if (p && (p == buf->buf || p[-1] == '\n'))
-		strbuf_setlen(buf, p - buf->buf);
+	strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
+	if (starts_with(buf->buf, pattern.buf + 1))
+		strbuf_setlen(buf, 0);
+	else if ((p = strstr(buf->buf, pattern.buf)))
+		strbuf_setlen(buf, p - buf->buf + 1);
 	strbuf_release(&pattern);
 }