[PATCH] fast-export: print usage when no options specified

[Miklos Vajna <vmiklos@frugalware.org>]

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
---

I found that behaviour surprising as well when I saw it the first time.
git rev-list outputs some usage info in that case, git log just logs
HEAD. Given that unconditionally exporting HEAD with no arguments is
probably not something most users want, here is a patch to make the
behaviour like what git rev-list already has.

 builtin-fast-export.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/builtin-fast-export.c b/builtin-fast-export.c
index 8386338..e9ee2c7 100644
--- 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);
 
-- 
1.6.1