[Checkins] [zopefoundation/DocumentTemplate] 279445: - linting fixes

[Jens Vagelpohl]

  Branch: refs/heads/fix-Zope-#921
  Home:   https://github.com/zopefoundation/DocumentTemplate
  Commit: 2794454d68b076f6b148681c8d3cd968a9e8f8df
      https://github.com/zopefoundation/DocumentTemplate/commit/2794454d68b076f6b148681c8d3cd968a9e8f8df
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2020-10-26 (Mon, 26 Oct 2020)

  Changed paths:
    M src/DocumentTemplate/tests/testustr.py

  Log Message:
  -----------
  - linting fixes