remove erroneous bracket

opentech/apply/review/templates/review/includes/review_button.html

 {% load review_tags workflow_tags %}
 {% if request.user|has_review_perm:submission %}
     {% if request.user|has_draft:submission or request.user|can_review:submission %}
-        <a href="{% url 'apply:submissions:reviews:form' submission_pk=submission.id %}" class="button button--primary {{ class }}}">
+        <a href="{% url 'apply:submissions:reviews:form' submission_pk=submission.id %}" class="button button--primary {{ class }}">
             {% if request.user|has_draft:submission %}
                 Update draft
             {% elif request.user|can_review:submission %}