rails/rails — pull request #5877 by avakhov (2012-04-17 13:00:36+00:00)
Title: Return routing redirect :path interpolation

This feature was implemented at 0bda6f1ec664fcfd1b312492a6419e3d76d5baa7, documented by 1e26bda0959c313ce5c1816bf4958b542050e5e2 and removed at 0809c675ef5831852b7c1aa8497402b2beff5185.

But the description is still there: https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/routing/redirection.rb#L75-79

I suggest to reimplement it (it's simple only 3 lines of code in this PR) or remove it from the documentation.

@joshk, @tenderlove what do yout think about it?