Fix indentation for the `showAction` when annotations are not used

Before:

    public function showAction($id)
    {
        // ...

        return $this->render('AcmeDemoBundle:Entity:show.html.twig', array(
            'entity'      => $entity,
            'delete_form' => $deleteForm->createView(),        ));
    }

After:

    public function showAction($id)
    {
        // ...

        return $this->render('AcmeDemoBundle:Entity:show.html.twig', array(
            'entity'      => $entity,
            'delete_form' => $deleteForm->createView(),
        ));
    }