[Checkins] [zopefoundation/Zope] e952da: Improve solidity of the ``debugError`` method (#830)

[Alessandro Pisa]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: e952da13dd9562225f3328c833c67afd0450ff66
      https://github.com/zopefoundation/Zope/commit/e952da13dd9562225f3328c833c67afd0450ff66
  Author: Alessandro Pisa <alessandro.pisa at gmail.com>
  Date:   2020-05-16 (Sat, 16 May 2020)

  Changed paths:
    M CHANGES.rst
    M src/ZPublisher/HTTPResponse.py
    M src/ZPublisher/tests/testHTTPResponse.py

  Log Message:
  -----------
  Improve solidity of the ``debugError`` method (#830)

Fixes #829