Add a newline to the end of the body when reporting an error

There seems to be some sort problem with ruby 1.9 where a response
body that is a single line with no newline causes the response not
to be sent properly.

app/controllers/application_controller.rb

@@ -243,7 +243,7 @@ class ApplicationController < ActionController::Base
 
       render :text => result.to_s, :content_type => "text/xml"
     else
-      render :text => message, :status => status
+      render :text => message + "\n", :status => status
     end
   end