Add missing ,

bin/cluster

@@ -260,7 +260,7 @@ if __name__ == '__main__':
                              choices=['origin', 'online', 'enterprise'],
                              help='Deployment type. (default: origin)')
     meta_parser.add_argument('-T', '--product-type',
-                             choices=['openshift' 'atomic-enterprise'],
+                             choices=['openshift', 'atomic-enterprise'],
                              help='Product type. (default: openshift)')
     meta_parser.add_argument('-o', '--option', action='append',
                              help='options')