[Checkins] [zopefoundation/ZConfig] 4ce1a3: update format description to reflect style setting

[Fred Drake]

  Branch: refs/heads/fd-format-setting-doc
  Home:   https://github.com/zopefoundation/ZConfig
  Commit: 4ce1a360bb3d732cf1f8f740e7b660cb064daa45
      https://github.com/zopefoundation/ZConfig/commit/4ce1a360bb3d732cf1f8f740e7b660cb064daa45
  Author: Fred Drake <fred.drake at keepertech.com>
  Date:   2019-09-19 (Thu, 19 Sep 2019)

  Changed paths:
    M ZConfig/components/logger/handlers.xml

  Log Message:
  -----------
  update format description to reflect style setting

- closes issue #72