gistfile1.txt

class ChatController < ApplicationController
  def authorize
    xml = Builder::XmlMarkup.new(:indent => 2)
    xml.instruct!
    xml.auth do
      xml.userName
      xml.gender
      xml.level
      xml.photo
      xml.photoModeImage
    end
    render :text => xml
  end
end

Result:
<?xml version="1.0" encoding="UTF-8"?>
<auth>
  <userName/>
  <gender/>
  <level/>
  <photo/>
  <photoModeImage/>
</auth>
<to_s/>


How to I get rid of the <to_s/>?