Don't continue processing after displaying the usage screen.

Modified: trunk/reactos/apps/utils/net/arp/arp.c

--- trunk/reactos/apps/utils/net/arp/arp.c	2005-07-06 09:27:08 UTC (rev 16450)
+++ trunk/reactos/apps/utils/net/arp/arp.c	2005-07-06 11:31:03 UTC (rev 16451)
@@ -326,6 +326,7 @@

         }
     } else {
         Usage();

+        return -1;

     }