Issue 2544 - Fix documentation generation for Diagnostics

lib/main.js

 /*
  * This Source Code is subject to the terms of the Mozilla Public License
  * version 2.0 (the "License"). You can obtain a copy of the License at
  * http://mozilla.org/MPL/2.0/.
  */
 
 Cu.import("resource://gre/modules/Services.jsm");
 
 let {Prefs} = require("prefs");
 let {WindowObserver} = require("windowObserver");
@@ skipping 34 matching lines @@
     window.removeEventListener("keypress", keyPressHandler, false);
   }
 });
 
 function getMenuItem()
 {
   // Randomize URI to work around bug 719376
   let stringBundle = Services.strings.createBundle("chrome://abpwatcher/locale/global.properties?" + Math.random());
   let result = [stringBundle.GetStringFromName("startwatching.label"), stringBundle.GetStringFromName("startwatching.accesskey")];
 
-  getMenuItem = function() result;
+  getMenuItem = () => result;
   return getMenuItem();
 }
 
 function popupShowingHandler(event)
 {
   let popup = event.originalTarget;
   if (!/^(abp-(?:toolbar|status|menuitem)-)popup$/.test(popup.id))
     return;
 
   popupHiddenHandler(event);
@@ skipping 49 matching lines @@
   {
     event.preventDefault();
     popupCommandHandler(event);
   }
 }
 
 function configureKey(window)
 {
   key = new KeySelector(window).selectKey(Prefs.startwatching_key);
 }