[Checkins] [zopefoundation/zope.untrustedpython] a3ad75: update tox

[GitHub]

  Branch: refs/heads/Python3_update
  Home:   https://github.com/zopefoundation/zope.untrustedpython
  Commit: a3ad756dfbc59c5a3e524303f373f4d2a94b4c5b
      https://github.com/zopefoundation/zope.untrustedpython/commit/a3ad756dfbc59c5a3e524303f373f4d2a94b4c5b
  Author: Alexander Loechel <Alexander.Loechel at lmu.de>
  Date:   2017-02-03 (Fri, 03 Feb 2017)

  Changed paths:
    M tox.ini

  Log Message:
  -----------
  update tox