rails/rails — pull request #7484 by kennyj (2012-08-30 14:13:40+00:00)
Title: Fixes warning: & interpreted as argument prefix

I found the following warning.

```
...
/home/vagrant/builds/rails/rails/actionpack/lib/action_controller/metal/conditional_get.rb:169: warning: `&' interpreted as argument prefix
...
```