Kill trailing whitespace in ruby files

test/functional/artists_controller_test.rb

@@ -8,38 +8,38 @@ class ArtistsControllerTest < ActionController::TestCase
       @artist = FactoryGirl.create(:artist)
       @user = FactoryGirl.create(:user)
     end
-    
+
     teardown do
       CurrentUser.user = nil
       CurrentUser.ip_addr = nil
     end
-    
+
     should "get the new page" do
       get :new, {}, {:user_id => @user.id}
       assert_response :success
     end
-    
+
     should "get the edit page" do
       get :edit, {:id => @artist.id}, {:user_id => @user.id}
       assert_response :success
     end
-    
+
     should "get the show page" do
       get :show, {:id => @artist.id}
       assert_response :success
     end
-    
+
     should "get the show page for a negated tag" do
       @artist.update_attribute(:name, "-aaa")
       get :show, {:id => @artist.id}
       assert_response :success
     end
-    
+
     should "get the index page" do
       get :index
       assert_response :success
     end
-    
+
     should "create an artist" do
       assert_difference("Artist.count", 1) do
         post :create, {:artist => FactoryGirl.attributes_for(:artist)}, {:user_id => @user.id}
@@ -47,14 +47,14 @@ class ArtistsControllerTest < ActionController::TestCase
       artist = Artist.last
       assert_redirected_to(artist_path(artist))
     end
-    
+
     should "update an artist" do
       post :update, {:id => @artist.id, :artist => {:name => "xxx"}}, {:user_id => @user.id}
       @artist.reload
       assert_equal("xxx", @artist.name)
       assert_redirected_to(artist_path(@artist))
     end
-    
+
     should "revert an artist" do
       @artist.update_attributes(:name => "xyz")
       @artist.update_attributes(:name => "abc")