erikw/tmux-powerline — pull request #141 by scicalculator (2013-02-19 08:28:50+00:00)
Title: Weather: don't force specific grep location in bsd

It is possible that grep can be installed in any locations,
so we should not just assume '/user/local/bin' on BSD machines.
We must rely on the user reading the manual and updating grep.

For example, I have grep installed in `$HOME/.homebrew/bin` on an OSX machine with homebrew.