caskroom/homebrew-cask — pull request #4302 by rolandwalker (2014-05-09 13:56:09+00:00)
Title: caveat: clamxav installs files into /usr/local

Specifically `/usr/local/clamXav`. This actually happens after Cask
installation; the user will be prompted to install on first execution
of ClamXav, but not informed about the location. Therefore it makes
sense to warn the user here.