Fixes the queue listen command. We might need to rectify this implementation before stable.

src/Queue/Console/ListenCommand.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Flarum\Queue\Console;
+
+use Illuminate\Queue\Listener;
+
+class ListenCommand extends \Illuminate\Queue\Console\ListenCommand
+{
+    public function __construct(Listener $listener)
+    {
+        parent::__construct($listener);
+
+        $this->addOption('env');
+    }
+}