[Checkins] [zopefoundation/zc.sourcefactory] 2c38fc: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zc.sourcefactory
  Commit: 2c38fc05aee5a408559267a2462b3d887f155480
      https://github.com/zopefoundation/zc.sourcefactory/commit/2c38fc05aee5a408559267a2462b3d887f155480
  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