tree de42f7ff0a80024eedd8e996b72e7dce15b8cc22
parent 87c95b75cb9b1b0c845b6370db4da3cd58dc9f21
author Scott Baker <smbaker@gmail.com> 1432867460 -0700
committer Scott Baker <smbaker@gmail.com> 1432867460 -0700

disallow duplicate user names