[Checkins] [zopefoundation/RestrictedPython] 8f74e5: appveyor debugging --> way to install tox 2

[Alexander Loechel]

  Branch: refs/heads/simplify_tox
  Home:   https://github.com/zopefoundation/RestrictedPython
  Commit: 8f74e5fdb96f6e3cb67942666032f81b820bc07e
      https://github.com/zopefoundation/RestrictedPython/commit/8f74e5fdb96f6e3cb67942666032f81b820bc07e
  Author: Alexander Loechel <Alexander.Loechel at lmu.de>
  Date:   2019-10-27 (Sun, 27 Oct 2019)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  appveyor debugging --> way to install tox 2