[Checkins] [zopefoundation/RestrictedPython] ce0fe6: activate black-check in CI tests

[GitHub]

  Branch: refs/heads/black
  Home:   https://github.com/zopefoundation/RestrictedPython
  Commit: ce0fe63745bb6e982ed83d90e085e45478a09e00
      https://github.com/zopefoundation/RestrictedPython/commit/ce0fe63745bb6e982ed83d90e085e45478a09e00
  Author: Alexander Loechel <Alexander.Loechel at lmu.de>
  Date:   2018-03-21 (Wed, 21 Mar 2018)

  Changed paths:
    M .travis.yml
    M appveyor.yml

  Log Message:
  -----------
  activate black-check in CI tests