Kill trailing whitespace in ruby files

app/models/artist_version.rb

@@ -1,32 +1,32 @@
 class ArtistVersion < ActiveRecord::Base
   belongs_to :updater
   belongs_to :artist
-  
+
   def self.search(params)
     q = scoped
     return q if params.blank?
-    
+
     if params[:name]
       q = q.where("name like ? escape E'\\\\'", params[:name].to_escaped_for_sql_like)
     end
-    
+
     if params[:artist_id]
       q = q.where("artist_id = ?", params[:artist_id].to_i)
     end
-    
+
     if params[:sort] == "Name"
       q = q.reorder("name")
     else
       q = q.reorder("id desc")
     end
-      
+
     q
   end
-  
+
   def url_array
     url_string.scan(/\S+/)
   end
-  
+
   def updater_name
     User.id_to_name(updater_id).tr("_", " ")
   end