fix indentation

lms/djangoapps/django_comment_client/forum/views.py

@@ -242,10 +242,10 @@ def single_thread(request, course_id, discussion_id, thread_id):
     user_info = cc_user.to_dict()
 
     try:
-      thread = cc.Thread.find(thread_id).retrieve(recursive=True, user_id=request.user.id)
+        thread = cc.Thread.find(thread_id).retrieve(recursive=True, user_id=request.user.id)
     except (cc.utils.CommentClientError, cc.utils.CommentClientUnknownError) as err:
-      log.error("Error loading single thread.")
-      raise Http404
+        log.error("Error loading single thread.")
+        raise Http404
 
     if request.is_ajax():
         courseware_context = get_courseware_context(thread, course)