Ensure that render_text only adds string content to the body of the response [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6547 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

 *SVN*
 
+* Ensure that render_text only adds string content to the body of the response [DHH]
+
 * Return the string representation from an Xml Builder when rendering a partial. Closes #5044 [tpope] 
 
 * Fixed that parameters from XML should also be presented in a hash with indifferent access [DHH]

actionpack/lib/action_controller/base.rb

@@ -867,9 +867,9 @@ def render_text(text = nil, status = nil, append_response = false) #:nodoc:
 
         if append_response
           response.body ||= ''
-          response.body << text
+          response.body << text.to_s
         else
-          response.body = text
+          response.body = text.to_s
         end
       end