Kill trailing whitespace in ruby files

app/models/wiki_page_version.rb

@@ -6,25 +6,25 @@ class WikiPageVersion < ActiveRecord::Base
     def for_user(user_id)
       where("updater_id = ?", user_id)
     end
-    
+
     def search(params)
       q = scoped
       return q if params.blank?
-      
+
       if params[:updater_id].present?
         q = q.for_user(params[:updater_id].to_i)
       end
-      
+
       if params[:wiki_page_id].present?
         q = q.where("wiki_page_id = ?", params[:wiki_page_id].to_i)
       end
-      
+
       q
     end
   end
-  
+
   extend SearchMethods
-  
+
   def updater_name
     User.id_to_name(updater_id)
   end