Update common-node.js

Author: devsnek

lib/common-node.js

@@ -52,11 +52,7 @@ exports.toUInt32 = toUInt32
  * @return {Object}
  */
 exports.querystringParse = function (q) {
-  var saved = querystring.unescape
-  querystring.unescape = unescape // global
-  var ret = querystring.parse(q)
-  querystring.unescape = saved
-  return ret
+  return querystring.parse(q, { decodeURIComponent: unescape })
 }
 
 /**