parityDel lua script params

parityDel lua only uses one key, the other variable should be ARGV

lib/warlock.js

@@ -58,7 +58,7 @@ module.exports = function(redis){
       function(err, parityDel){
         if (err) return cb(err);
 
-        return parityDel.run(2, warlock.makeKey(key), id, cb);
+        return parityDel.run(1, warlock.makeKey(key), id, cb);
       }
     );
   };