[Checkins] [zopefoundation/transaction] 1e0fad: Fix tests.

[Michael Howitz]

  Branch: refs/heads/lint
  Home:   https://github.com/zopefoundation/transaction
  Commit: 1e0fad5e30797c035d73f0d5a36858221095134e
      https://github.com/zopefoundation/transaction/commit/1e0fad5e30797c035d73f0d5a36858221095134e
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-10-30 (Fri, 30 Oct 2020)

  Changed paths:
    M src/transaction/_manager.py
    M tox.ini

  Log Message:
  -----------
  Fix tests.