Don't show needed positions for closed ballots. Fixes ietf-tools#1622. Commit ready for merge.

 - Legacy-Id: 9516

Author: rjsparks

ietf/templates/doc/document_ballot_content.html

@@ -44,9 +44,10 @@ <h4><span class="label label-{{ n|pos_to_label }}"> {{ n.name }}</span></h4>
       {% endif %}
     {% endif %}
 
-    <p class="alert alert-info"><b>Summary:</b> {{ summary }}</p>
     {% if not ballot_open %}
       <p class="alert alert-warning"><b>Note:</b> This ballot was opened for revision {{ ballot.rev }} and is now closed.</p>
+    {% else %}
+      <p class="alert alert-info"><b>Summary:</b> {{ summary }}</p>
     {% endif %}
 
     {% if ballot.ballot_type.question %}