mxcl/homebrew — pull request #11056 by sorin-ionescu (2012-03-19 15:38:36+00:00)
Title: zsh: make the disabling of /etc optional

[Requested](https://github.com/mxcl/homebrew/commit/73ee43fe97d0b6e2813b981514ae29c45ecc186e#commitcomment-1102220) by @indrajitr.