bash-3.2$ brew info libyaml
libyaml 0.1.4
http://pyyaml.org/wiki/LibYAML
/home/users/casallas/local/Cellar/libyaml/0.1.4 (5 files, 288K)
Error: undefined method `basename' for "/home/users/casallas/local/Library/Formula/libyaml.rb":String
Please follow the instructions to report this bug at:
https://github.com/rubiojr/homebrew/wiki/new-issue
/home/users/casallas/local/Library/Homebrew/brew.h.rb:204:in `github_info'
/home/users/casallas/local/Library/Homebrew/brew.h.rb:246:in `info'
/home/users/casallas/local/bin/brew:258:in `block in <main>'
/home/users/casallas/local/bin/brew:258:in `each'
/home/users/casallas/local/bin/brew:258:in `<main>'