symfony/symfony — pull request #3954 by Crell (2012-04-15 23:32:30+00:00)
Title: Return  from Response::prepare() so that the method may be chained.

Currently, Response::prepare() returns nothing, ever. That's such a waste. This one-liner returns $this, so that the method may be chained. That allows for, for instance:

$kernel->handle($request)->prepare($request)->send();