Kill trailing whitespace in ruby files

test/functional/news_updates_controller_test.rb

@@ -8,47 +8,47 @@ class NewsUpdatesControllerTest < ActionController::TestCase
       CurrentUser.ip_addr = "127.0.0.1"
       @news_update = FactoryGirl.create(:news_update)
     end
-    
+
     teardown do
       CurrentUser.user = nil
       CurrentUser.ip_addr = nil
     end
-    
+
     context "index action" do
       should "render" do
         get :index, {}, :user_id => @admin.id
         assert_response :success
       end
     end
-    
+
     context "new action" do
       should "render" do
         get :new, {}, :user_id => @admin.id
         assert_response :success
       end
     end
-    
+
     context "edit action" do
       should "render" do
         get :edit, {:id => @news_update.id}, {:user_id => @admin.id}
         assert_response :success
       end
     end
-    
+
     context "update action" do
       should "work" do
         post :update, {:id => @news_update.id, :news_update => {:message => "zzz"}}, {:user_id => @admin.id}
         assert_redirected_to(news_updates_path)
       end
     end
-    
+
     context "create action" do
       should "work" do
         post :create,  {:news_update => {:message => "zzz"}}, {:user_id => @admin.id}
         assert_redirected_to(news_updates_path)
       end
     end
-    
+
     context "destroy action" do
       should "work" do
         post :destroy, {:id => @news_update.id, :format => "js"}, {:user_id => @admin.id}