[Checkins] [zopefoundation/zope.testbrowser] 57a5fc: Try the suggestions of @mgedmin.

[GitHub]

  Branch: refs/heads/py36-pypy
  Home:   https://github.com/zopefoundation/zope.testbrowser
  Commit: 57a5fcc17c33e73c0172e55ad9772e8c96260260
      https://github.com/zopefoundation/zope.testbrowser/commit/57a5fcc17c33e73c0172e55ad9772e8c96260260
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-02-11 (Sat, 11 Feb 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Try the suggestions of @mgedmin.