From d648970bc8503b15b1e26c48668f023e3dea3c1c Mon Sep 17 00:00:00 2001
From: suzukaze <jun@ubuntu_suzukaze.(none)>
Date: Tue, 14 Aug 2012 23:50:39 +0900
Subject: fixed showing no 'Usage'.

---
 tools/mruby/mruby.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/mruby/mruby.c b/tools/mruby/mruby.c
index e6a088672..3a234d22e 100644
--- a/tools/mruby/mruby.c
+++ b/tools/mruby/mruby.c
@@ -60,6 +60,8 @@ parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
 
   memset(args, 0, sizeof(*args));
 
+  if (argc == 1) return -2;
+
   for (argc--,argv++; argc > 0; argc--,argv++) {
     char *item;
     if (argv[0][0] != '-') break;
@@ -121,7 +123,7 @@ append_cmdline:
       else return -3;
       return 0;
     default:
-      break;
+      return -4;
     }
   }
 
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