From: H. Peter Anvin <hpa@zytor.com>
Date: Fri, 25 Aug 2006 04:17:06 +0000 (-0700)
Subject: Print a usage message when we get an invalid option
X-Git-Tag: syslinux-3.20-pre20^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cb1525aaea9d94eb67ae4a6d6e8a0bfaf636214c;p=profile%2Fivi%2Fsyslinux.git

Print a usage message when we get an invalid option
---

diff --git a/extlinux/extlinux.c b/extlinux/extlinux.c
index be0e296..176ed2f 100644
--- a/extlinux/extlinux.c
+++ b/extlinux/extlinux.c
@@ -796,8 +796,7 @@ main(int argc, char *argv[])
       fputs("extlinux " VERSION "\n", stderr);
       exit(0);
     default:
-      fprintf(stderr, "%s: Unknown option: %c\n", program, optopt);
-      exit(EX_USAGE);
+      usage(EX_USAGE);
     }
   }