Issue #3439870 by Steven Jones, dineshkumarbollu: Fix warnings on clone.

clone/hosting_clone.drush.inc

@@ -24,11 +24,15 @@ function drush_hosting_clone_pre_hosting_task($task) {
     }
 
     if (module_exists('hosting_alias')) {
+      if (isset($task->task_args['aliases'])) {
         $task->options['aliases'] = str_replace("\n", ",", $task->task_args['aliases']);
+      }
+      if (isset($task->task_args['redirection'])) {
         $task->options['redirection'] = $task->task_args['redirection'];
       }
     }
   }
+}
 
 
 /**