[Checkins] [zopefoundation/zc.lockfile] 84b7bd: Improve change log.

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zc.lockfile
  Commit: 84b7bd189131afa17df10fe789af91fd10e749c6
      https://github.com/zopefoundation/zc.lockfile/commit/84b7bd189131afa17df10fe789af91fd10e749c6
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-08-07 (Wed, 07 Aug 2019)

  Changed paths:
    M CHANGES.rst

  Log Message:
  -----------
  Improve change log.