rails/rails — pull request #11387 by zzak (2013-07-10 03:34:15+00:00)
Title: Backport 714bb17

I wasn't sure on the backport policy for doc bugs, but someone reported this to the [rubyonrails-docs list](https://groups.google.com/d/msg/rubyonrails-docs/uxq-LqvHGKM/UAH75ocXC88J)