require 'formula' class Ttytter 'ttytter' end def caveats; <<-EOS.undent To take full advantage of readline features you must install readline: $ brew install readline and the Perl Module Term::ReadLine::TTYtter $ cpan -i Term::ReadLine::TTYtter Or if you have cpanminus: $ cpanm Term::ReadLine::TTYtter EOS end end