GUACAMOLE-197: Add comments to the AngularJS files.

extensions/guacamole-auth-radius/src/main/resources/radiusModule.js

@@ -27,5 +27,5 @@ angular.module('guacRadius', [
     'form'
 ]);
 
-// Ensure the guacDuo module is loaded along with the rest of the app
+// Ensure the guacRadius module is loaded along with the rest of the app
 angular.module('index').requires.push('guacRadius');