robbyrussell/oh-my-zsh — pull request #3241 by alkersan (2014-10-20 10:39:23+00:00)
Title: Add completion of exec command introduced in recent docker 1.3 release

Hi,
I'm not experienced zsh writer, but this seems to be pretty straightforward addition.

And I noticed one possible drawback of current completion: rm completes only with running containers, which by default requires --force. I usually removing only stopped containers, so would it be useful to autocomplete rm command with stopped containers also?