parse-options: add new function "usage_msg_opt"

diff --git a/builtin-rerere.c b/builtin-rerere.c
index 020af7377bb9aa1bced7489d40169e3cb2ff7682..adfb7b5f48597c19c23235b74cf1a0c779985dc6 100644 (file)
--- a/builtin-rerere.c
+++ b/builtin-rerere.c
@@ -116,7 +116,7 @@ int cmd_rerere(int argc, const char **argv, const char *prefix)
                        if (!has_rerere_resolution(name))
                                unlink_rr_item(name);
                }
-               unlink(git_path("rr-cache/MERGE_RR"));
+               unlink_or_warn(git_path("rr-cache/MERGE_RR"));
        } else if (!strcmp(argv[1], "gc"))
                garbage_collect(&merge_rr);
        else if (!strcmp(argv[1], "status"))