[Checkins] [zopefoundation/zope.outputchecker] 432ea0: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.outputchecker
  Commit: 432ea087bcbfc93b379502853ef41169086d883c
      https://github.com/zopefoundation/zope.outputchecker/commit/432ea087bcbfc93b379502853ef41169086d883c
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2015-11-08 (Sun, 08 Nov 2015)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Stop using deprecated --use-mirrors