[Checkins] [zopefoundation/zope.sequencesort] e06bc3: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.sequencesort
  Commit: e06bc3bc1dbcf7e630bd453b82aab5c2dadbd343
      https://github.com/zopefoundation/zope.sequencesort/commit/e06bc3bc1dbcf7e630bd453b82aab5c2dadbd343
  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