mxcl/homebrew — pull request #11966 by mikemcquaid (2012-04-30 13:50:37+00:00)
Title: Fix Ruby warnings.

Fix some of the warnings you see when you do `export RUBYOPT="-w"`
and `brew readall`. The trickier stuff to handle (if we even care) is
that ruby doesn't seem to detect that set_instance_variable does what it says.

The ones that I've included seem vague no-brainers.