lstat_cache(): print a warning if doing ping-pong between cache types

diff --git a/builtin-fast-export.c b/builtin-fast-export.c
index 838633808c3eb4891919aa397716f04fcd4cfe24..e9ee2c79ac0395fde30de329d181733d7be88d40 100644 (file)
--- a/builtin-fast-export.c
+++ b/builtin-fast-export.c
@@ -497,6 +497,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
                OPT_END()
        };
 
+       if (argc == 1)
+               usage_with_options (fast_export_usage, options);
+
        /* we handle encodings */
        git_config(git_default_config, NULL);