Add missing class name on edit form

Resources/views/CRUD/base_edit_form.html.twig

@@ -7,7 +7,6 @@
         </div>
     {% else %}
         <form class="form-horizontal" action="{{ admin.generateUrl(url, {'id': admin.id(object), 'uniqid': admin.uniqid, 'subclass': app.request.get('subclass')}) }}" {{ form_enctype(form) }} method="POST">
-
             {% if form.vars.errors|length > 0 %}
                 <div class="sonata-ba-form-error">
                     {{ form_errors(form) }}