Fix button on policy test page

passbook/admin/templates/administration/policy/test.html

@@ -5,3 +5,7 @@
 {% block above_form %}
 <h1>{% blocktrans with policy=policy %}Test policy {{ policy }}{% endblocktrans %}</h1>
 {% endblock %}
+
+{% block action %}
+{% trans 'Test' %}
+{% endblock %}