[Checkins] [zopefoundation/Zope] 64eacc: try to make `flake8` happy

[Dieter Maurer]

  Branch: refs/heads/issue717-pttales-4.x
  Home:   https://github.com/zopefoundation/Zope
  Commit: 64eaccaf74fa5cd438dde19299b6783815603986
      https://github.com/zopefoundation/Zope/commit/64eaccaf74fa5cd438dde19299b6783815603986
  Author: dieter <dieter at handshake.de>
  Date:   2020-03-18 (Wed, 18 Mar 2020)

  Changed paths:
    M src/Products/PageTemplates/engine.py

  Log Message:
  -----------
  try to make `flake8` happy