[Checkins] [zopefoundation/zope.app.error] 28964e: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.app.error
  Commit: 28964e957c4b1337f78c0afc7b8f5218799f7c5f
      https://github.com/zopefoundation/zope.app.error/commit/28964e957c4b1337f78c0afc7b8f5218799f7c5f
  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