chore(grunt): remove unnecessary white spaces

Author: takashi

lib/grunt/utils.js

@@ -26,15 +26,15 @@ var getRandomPorts = function() {
 var getPackage = function() {
   if ( !pkg ) {
 
-    // Search up the folder hierarchy for the first package.json    
+    // Search up the folder hierarchy for the first package.json
     var packageFolder = path.resolve('.');
     while ( !fs.existsSync(path.join(packageFolder, 'package.json')) ) {
       var parent = path.dirname(packageFolder);
       if ( parent === packageFolder) { break; }
       packageFolder = parent;
     }
     pkg = JSON.parse(fs.readFileSync(path.join(packageFolder,'package.json'), 'UTF-8'));
-  
+
   }
 
   return pkg;
@@ -225,7 +225,7 @@ module.exports = {
   },
 
 
-  updateWebdriver: function(done){    
+  updateWebdriver: function(done){
     if (process.env.TRAVIS) {
       // Skip the webdriver-manager update on Travis, since the browsers will
       // be provided remotely.