robbyrussell/oh-my-zsh — pull request #1969 by ajdle (2013-07-12 19:06:47+00:00)
Title: [lib][completion] enable user completion by default

User completion was disabled by default by commit c4434d2 which purpose is mainly to add .ssh/config's hosts to host completion.

Plus there is a list of ignored users (for completion) in lib/completion.zsh +53, we may want to complete the others.