mergetool: fix running in subdir when rerere enabled

diff --git a/parse-options.c b/parse-options.c
index 312a85dbdef5723ef805917f5a556b75a55a7041..4fbe924a5de27d04b271a11a2ae040e817483951 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -661,7 +661,7 @@ void NORETURN usage_msg_opt(const char *msg,
                   const char * const *usagestr,
                   const struct option *options)
 {
-       fprintf(stderr, "%s\n\n", msg);
+       fprintf(stderr, "fatal: %s\n\n", msg);
        usage_with_options(usagestr, options);
 }