Merge pull request #5421 from parndt/master

Added missing 'end' to documentation example

actionpack/lib/abstract_controller/layouts.rb

@@ -120,6 +120,7 @@ module AbstractController
   #       def writers_and_readers
   #         logged_in? ? "writer_layout" : "reader_layout"
   #       end
+  #   end
   #
   # Now when a new request for the index action is processed, the layout will vary depending on whether the person accessing
   # is logged in or not.