[Checkins] [zopefoundation/Products.SiteErrorLog] 352797: Update configuration for version 5 of `isort`

[Jürgen Gmach]

  Branch: refs/heads/fix-isort
  Home:   https://github.com/zopefoundation/Products.SiteErrorLog
  Commit: 3527979f63929da684b0b5e8c5da65280991d464
      https://github.com/zopefoundation/Products.SiteErrorLog/commit/3527979f63929da684b0b5e8c5da65280991d464
  Author: Jürgen Gmach <juergen.gmach at googlemail.com>
  Date:   2020-07-16 (Thu, 16 Jul 2020)

  Changed paths:
    M CHANGES.rst
    M setup.cfg
    M src/Products/SiteErrorLog/SiteErrorLog.py
    M src/Products/SiteErrorLog/tests/testInitialization.py
    M tox.ini

  Log Message:
  -----------
  Update configuration for version 5 of `isort`

- remove deprecated configuration options
- remove duplicate isort check via flake8
- fix sort order of imports

modified:   CHANGES.rst
modified:   setup.cfg
modified:   src/Products/SiteErrorLog/SiteErrorLog.py
modified:   src/Products/SiteErrorLog/tests/testInitialization.py
modified:   tox.ini