Fix linting issues

Author: arthurfiorette

lib/util/url.js

@@ -1,6 +1,8 @@
+'use strict';
+
 // url.resolve is deprecated because it invokes the deprecated url.parse() internally
 // https://nodejs.org/api/url.html#urlresolvefrom-to
-module.exports.resolve = function (from, to) {
+module.exports.resolve = function(from, to) {
   const resolvedUrl = new URL(to, new URL(from, 'resolve://'));
   if (resolvedUrl.protocol === 'resolve:') {
     // `from` is a relative URL.