pfsense/pfsense — pull request #638 by stilez (2013-05-14 16:31:26+00:00)
Title: Enhance  edit.php to handle tabs/indents 

edit.php is often used to quickly change text files; but it's limited by lack of tab handling.
Enhance using a lightweight open source library to handle tabs/indents.

(library source = http://github.com/wjbryant/taboverride , MIT license)