Kill trailing whitespace in ruby files

app/models/user_feedback.rb

@@ -12,31 +12,31 @@ class UserFeedback < ActiveRecord::Base
     def positive
       where("category = ?", "positive")
     end
-    
+
     def neutral
       where("category = ?", "neutral")
     end
-    
+
     def negative
       where("category = ?", "negative")
     end
-    
+
     def for_user(user_id)
       where("user_id = ?", user_id)
     end
-    
+
     def search(params)
       q = scoped
       return q if params.blank?
-      
+
       if params[:user_id].present?
         q = q.for_user(params[:user_id].to_i)
       end
-      
+
       if params[:user_name].present?
         q = q.where("user_id = (select _.id from users _ where lower(_.name) = ?)", params[:user_name].downcase)
       end
-      
+
       if params[:creator_id].present?
          q = q.where("creator_id = ?", params[:creator_id].to_i)
       end
@@ -44,34 +44,34 @@ class UserFeedback < ActiveRecord::Base
       if params[:creator_name].present?
         q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].downcase)
       end
-      
+
       q
     end
   end
-    
+
   extend SearchMethods
-  
+
   def initialize_creator
     self.creator_id = CurrentUser.id
   end
-  
+
   def user_name
     User.id_to_name(user_id)
   end
-  
+
   def creator_name
     User.id_to_name(creator_id)
   end
-  
+
   def user_name=(name)
     self.user_id = User.name_to_id(name)
   end
-  
+
   def create_dmail
     body = %{#{creator_name} created a "#{category} record":/user_feedbacks?search[user_id]=#{user_id} for your account. #{body}}
     Dmail.create_split(:to_id => user_id, :title => "Your user record has been updated", :body => body)
   end
-  
+
   def creator_is_privileged
     if !creator.is_privileged?
       errors[:creator] << "must be privileged"