mxcl/homebrew — pull request #13541 by conormcd (2012-07-22 23:04:43+00:00)
Title: Add `--installed` to `brew deps`

Show dependencies for all installed formulae by using `brew deps
--installed`.

I took the opportunity to make the behavior of the options to `brew
deps` a little more orthogonal. The `--1`, `--tree` and `-n` options now
work the same way whether you specify one formula, multiple or all.