add the right args

scripts/needs-updates

@@ -24,8 +24,9 @@ def main(args):
     parser.add_option('--host', dest='hostlist', action='append',
         help="hosts to contact, defaults to all in your inventory", default=[])
     options, args = parser.parse_args(args)
-    options.module_name = 'command'
-    
+    options.module_name = 'shell'  
+    options.module_args = 'yum check-update > /dev/null'
+           
     # no hosts specified? Run against all of them
     if not options.hostlist:
         options.pattern = 'all'