fix indenting

api/comment_threads.rb

@@ -2,14 +2,14 @@ get "#{APIPREFIX}/threads" do # retrieve threads by course
   #if a group id is sent, then process the set of threads with that group id or with no group id
   if params["group_id"]
     threads = CommentThread.any_of(
-    {:course_id => params["course_id"],:group_id => params[:group_id]}, 
-    {:course_id => params["course_id"],:group_id.exists => false}, 
+    {:course_id => params["course_id"],:group_id => params[:group_id]},
+    {:course_id => params["course_id"],:group_id.exists => false},
     )
   else
     threads = CommentThread.where(course_id: params["course_id"])
     #else process them all
   end
-    handle_threads_query(threads)    
+  handle_threads_query(threads)
 end
 
 get "#{APIPREFIX}/threads/:thread_id" do |thread_id|
@@ -30,7 +30,7 @@ put "#{APIPREFIX}/threads/:thread_id" do |thread_id|
     thread.tags = params["tags"]
     thread.save
   end
-  
+
   if thread.errors.any?
     error 400, thread.errors.full_messages.to_json
   else