Error message trying to open rtorrent
According to the answer from: https://github.com/Homebrew/homebrew/issues/24132


  I ran into the same thing this week with upgrading to Mavericks. It'll fix itself if you do:


brew reinstall libtorrent --build-from-source


  In this case, I think the issue is that the Mavericks bottle for libtorrent is bogus, but it's the default install.


Author: bconway