Vidalia 0.2.19 starts Tor with DataDirectory "" by default
Reported by ‘drizztbsd’ (the maintainer of the Vidalia package for Arch Linux) in #tor on 2012-06-14 (UTC).
2012-06-14 19:15:37 <drizztbsd> rransom / chiiph: I bisected the commit: e36785b3bc90fd33eed45e5ca6d334780d5fab30
2012-06-14 19:28:22 <drizztbsd> chiiph: lamer patch that works https://gist.github.com/2932398