facebook/hhvm — pull request #3077 by jjeising (2014-07-01 15:15:04+00:00)
Title: Added \e escape code

Added \e escape code for ESC (27), see [PHP #60350](https://bugs.php.net/bug.php?id=60350) for details.

There may be some other tests that are fixed by this (for example (k|r|kr)sort_variation5), but there were some strange behaviors so I'm not quite sure about the results in my environment.