connected.c: use error_errno()

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

connected.c

@@ -86,17 +86,14 @@ static int check_everything_connected_real(sha1_iterate_fn fn,
 		memcpy(commit, sha1_to_hex(sha1), 40);
 		if (write_in_full(rev_list.in, commit, 41) < 0) {
 			if (errno != EPIPE && errno != EINVAL)
-				error(_("failed write to rev-list: %s"),
-				      strerror(errno));
+				error_errno(_("failed write to rev-list"));
 			err = -1;
 			break;
 		}
 	} while (!fn(cb_data, sha1));
 
-	if (close(rev_list.in)) {
-		error(_("failed to close rev-list's stdin: %s"), strerror(errno));
-		err = -1;
-	}
+	if (close(rev_list.in))
+		err = error_errno(_("failed to close rev-list's stdin"));
 
 	sigchain_pop(SIGPIPE);
 	return finish_command(&rev_list) || err;