3 Setup "Homebrew" ("The missing package manager for OS X", http://brew.sh):
5 - Enable ZSH completions installed by Homebrew formulae.
6 - Install a `brew` wrapper function.
8 This wrapper function for the `brew`(1) command does the following:
10 - Detect the location of the "real" brew(1) command.
11 - Change user and group when the Homebrew installation is owned by a different
12 user (to preserve sane file permissions).
13 - Set a relaxed umask(1) so that other users can use software installed by
15 - Call the "real" `brew`(1) command.