fix normalization for nico seiga urls

script/fixes/046_fix_nicovideo_artist_urls.rb

@@ -5,7 +5,7 @@ require File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'config',
 ActiveRecord::Base.without_timeout do
   ArtistUrl.where("normalized_url like ?", "\%nico\%").find_each do |url|
     before = url.normalized_url
-    url.normalized_url = Sources::Site.new(before).normalize_for_artist_finder!
+    url.normalize!
     puts "#{before} -> #{url.normalized_url}" if before != url.normalized_url
   end
 end