Kill trailing whitespace in ruby files

test/unit/sources/pixiv_test.rb

@@ -9,19 +9,19 @@ module Sources
         @site = Sources::Site.new("http://www.pixiv.net/member_illust.php?mode=big&illust_id=9646484")
         @site.get
       end
-      
+
       should "get the profile" do
         assert_equal("http://www.pixiv.net/member.php?id=4015", @site.profile_url)
       end
-      
+
       should "get the artist name" do
         assert_equal("シビレ罠", @site.artist_name)
       end
-      
+
       should "get the image url" do
         assert_equal("http://i1.pixiv.net/img01/img/nisieda/9646484.jpg", @site.image_url)
       end
-      
+
       should "get the tags" do
         assert(@site.tags.size > 0)
         first_tag = @site.tags.first
@@ -29,7 +29,7 @@ module Sources
         assert(first_tag[0] =~ /./)
         assert(first_tag[1] =~ /search\.php/)
       end
-      
+
       should "convert a page into a json representation" do
         assert_nothing_raised do
           @site.to_json