fix inline closed threads

lms/static/coffee/src/discussion/views/discussion_thread_view_inline.coffee

@@ -104,6 +104,7 @@ if Backbone?
       @$el.find('.collapse-post').css('display', 'block')
       @$el.find('.post-extended-content').show()
       @makeWmdEditor "reply-body"
+      @renderAttrs()
       if @$el.find('.loading').length
         @renderResponses()
 

lms/templates/discussion/mustache/_inline_thread_show.mustache

@@ -13,9 +13,9 @@
 
             <span class="timeago" title="{{created_at}}">{{created_at}}</span>
 
-                <span class="post-status-closed top-post-status" style="display: none">
-                    &bull; This thread is closed.
-                </span>
+            <span class="post-status-closed top-post-status" style="display: none">
+                &bull; This thread is closed.
+            </span>
         </p>
     </header>
     <div class="post-body">{{abbreviatedBody}}</div>