Kill trailing whitespace in ruby files

test/unit/forum_topic_test.rb

@@ -8,48 +8,48 @@ class ForumTopicTest < ActiveSupport::TestCase
       CurrentUser.ip_addr = "127.0.0.1"
       @topic = FactoryGirl.create(:forum_topic, :title => "xxx")
     end
-    
+
     teardown do
       CurrentUser.user = nil
       CurrentUser.ip_addr = nil
     end
-    
+
     context "constructed with nested attributes for its original post" do
       should "create a matching forum post" do
         assert_difference(["ForumTopic.count", "ForumPost.count"], 1) do
           @topic = FactoryGirl.create(:forum_topic, :title => "abc", :original_post_attributes => {:body => "abc"})
-       end 
+       end
       end
     end
-    
+
     should "be searchable by title" do
       assert_equal(1, ForumTopic.title_matches("xxx").count)
       assert_equal(0, ForumTopic.title_matches("aaa").count)
     end
-    
+
     should "initialize its creator" do
       assert_equal(@user.id, @topic.creator_id)
     end
-    
+
     context "updated by a second user" do
       setup do
         @second_user = FactoryGirl.create(:user)
         CurrentUser.user = @second_user
       end
-      
+
       should "record its updater" do
         @topic.update_attributes(:title => "abc")
         assert_equal(@second_user.id, @topic.updater_id)
       end
     end
-    
+
     context "with multiple posts that has been deleted" do
       setup do
         5.times do
           FactoryGirl.create(:forum_post, :topic_id => @topic.id)
         end
       end
-      
+
       should "delete any associated posts" do
         assert_difference("ForumPost.count", -5) do
           @topic.destroy