robbyrussell/oh-my-zsh — pull request #824 by Dieterbe (2012-01-11 12:55:18+00:00)
Title: quote correctly(?) to avoid bogus output from subshells fixes #770

TBH i don't understand exactly what's going on, but this was suggested by somebody who seems to know what he's talking about, and this seems to work fine for me.
see #770