From 02fa05dc53027f8b510ef3e785df59fd5f6e1f38 Mon Sep 17 00:00:00 2001
From: Will Bryant <will.bryant@gmail.com>
Date: Fri, 24 Jun 2011 15:58:50 +1200
Subject: [PATCH] halt if given an unknown command-line option

---
 src/niet.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/niet.c b/src/niet.c
index 726df1d..e8f40a5 100644
--- a/src/niet.c
+++ b/src/niet.c
@@ -248,6 +248,9 @@ int main(int argc, char* argv[]){
 			case 'c':
 				dir = optarg;
 				break;
+			
+			case '?':
+				return help();
 		}
 	}
 	if (optind >= argc) return help();