print errno when reporting a system call error

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/rerere.c b/rerere.c
index 971bfedfb2..1351b0c3fb 100644
--- a/rerere.c
+++ b/rerere.c
@@ -484,13 +484,13 @@ static int handle_file(const char *path, unsigned char *sha1, const char *output
 	io.input = fopen(path, "r");
 	io.io.wrerror = 0;
 	if (!io.input)
-		return error("Could not open %s", path);
+		return error_errno("Could not open %s", path);
 
 	if (output) {
 		io.io.output = fopen(output, "w");
 		if (!io.io.output) {
 			fclose(io.input);
-			return error("Could not write %s", output);
+			return error_errno("Could not write %s", output);
 		}
 	}