From 1b65446739dfc1f81d9df3a11e7b8b0a669d4546 Mon Sep 17 00:00:00 2001
From: Raphael Assenat <raph@raphnet.net>
Date: Sun, 25 Oct 2015 16:29:23 -0400
Subject: [PATCH] Complain if unknown argument is passed

---
 tool/n64savetool/mempak_format.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tool/n64savetool/mempak_format.c b/tool/n64savetool/mempak_format.c
index 2652c46..877ad9c 100644
--- a/tool/n64savetool/mempak_format.c
+++ b/tool/n64savetool/mempak_format.c
@@ -47,10 +47,12 @@ int main(int argc, char **argv)
 			case 'h':
 				print_usage();
 				return 0;
-
 			case 'f':
 				format = optarg;
 				break;
+			case '?':
+				fprintf(stderr, "Unknown argument. Try -h\n");
+				return -1;
 		}
 	}