--- a/nashorn/samples/ziplist.js	Thu Aug 07 11:06:45 2014 +0200
+++ b/nashorn/samples/ziplist.js	Thu Aug 07 19:19:46 2014 +0530
@@ -30,7 +30,7 @@
  */
 
 if (arguments.length == 0) {
-    print("Usage: jjs ziplist <zip-file>");
+    print("Usage: jjs ziplist -- <zip-file>");
     exit(1);
 }