(js) Fix possible errors (help from jsjint)

UI/WebServerResources/js/Mailer/sgIMIP.directive.js

@@ -1,6 +1,7 @@
 /* -*- Mode: javascript; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 
 (function() {
+  /* jshint validthis: true */
   'use strict';
 
   /**
@@ -22,21 +23,20 @@
     }
 
     controller.$inject = ['$scope', 'User'];
-    
     function controller($scope, User) {
       var vm = this;
+
       $scope.delegateInvitation = false;
       $scope.delegatedTo = '';
       $scope.searchText = '';
-      
+
       $scope.userFilter = function($query) {
         return User.$filter($query);
       };
-      
+
       $scope.iCalendarAction = function(action) {
-      
         var data;
-        
+
         if (action == 'delegate') {
           data = {receiveUpdates: false,
                   delegatedTo: $scope.delegatedTo.c_email};
@@ -46,7 +46,7 @@
       };
     }
   }
-    
+
   angular
     .module('SOGo.MailerUI')
     .directive('sgImip', sgImip);