olivierverdier/zsh-git-prompt — pull request #46 by aroberts (2014-09-09 14:52:29+00:00)
Title: invoke git with `command git ...`

using `command`, the actual git executable will be invoked, which is probably
transparent to many users, but will show a speed improvement in prompt
generation for users with e.g. git aliased to hub
(https://github.com/github/hub)