Kill trailing whitespace in ruby files

app/controllers/moderator/post/approvals_controller.rb

@@ -2,7 +2,7 @@ module Moderator
   module Post
     class ApprovalsController < ApplicationController
       before_filter :janitor_only
-      
+
       def create
         @post = ::Post.find(params[:post_id])
         if @post.is_deleted? || @post.is_flagged? || @post.is_pending?

app/controllers/moderator/post/disapprovals_controller.rb

@@ -2,7 +2,7 @@ module Moderator
   module Post
     class DisapprovalsController < ApplicationController
       before_filter :janitor_only
-      
+
       def create
         @post = ::Post.find(params[:post_id])
         @post_disapproval = PostDisapproval.create(:post => @post, :user => CurrentUser.user)

app/controllers/moderator/post/posts_controller.rb

@@ -8,7 +8,7 @@ module Moderator
       def confirm_delete
         @post = ::Post.find(params[:id])
       end
-      
+
       def delete
         @post = ::Post.find(params[:id])
         if params[:commit] == "Delete"
@@ -17,12 +17,12 @@ module Moderator
         end
         redirect_to(post_path(@post))
       end
-      
+
       def undelete
         @post = ::Post.find(params[:id])
         @post.undelete!
       end
-      
+
       def annihilate
         @post = ::Post.find(params[:id])
         @post.annihilate!

app/controllers/moderator/post/queues_controller.rb

@@ -3,7 +3,7 @@ module Moderator
     class QueuesController < ApplicationController
       respond_to :html, :json
       before_filter :janitor_only
-      
+
       def show
         ::Post.without_timeout do
           @posts = ::Post.order("posts.id asc").pending_or_flagged.available_for_moderation(params[:hidden]).search(:tag_match => "#{params[:query]} status:any").paginate(params[:page], :limit => 100)