dashboard: make op descriptions shorter

circle/dashboard/templates/dashboard/vm-detail/_operations.html

@@ -7,7 +7,7 @@
 <span class="operation operation-{{op.op}} btn btn-default disabled btn-xs">
 <span class="operation operation-{{op.op}} btn btn-default disabled btn-xs">
 {% else %}
 {% else %}
 <a href="{{op.get_url}}" class="operation operation-{{op.op}} btn
 <a href="{{op.get_url}}" class="operation operation-{{op.op}} btn
-    btn-{{op.effect}} btn-xs" title="{{op.name|capfirst}}: {{op.description|truncatewords:20}}">
+    btn-{{op.effect}} btn-xs" title="{{op.name|capfirst}}: {{op.description|truncatewords:15}}">
 {% endif %}
 {% endif %}
     <i class="fa fa-{{op.icon}}"></i>
     <i class="fa fa-{{op.icon}}"></i>
     <span{% if not op.is_preferred %} class="sr-only"{% endif %}>{{op.name}}</span>
     <span{% if not op.is_preferred %} class="sr-only"{% endif %}>{{op.name}}</span>