[Checkins] [zopefoundation/ZServer] 1930e8: fix typo

[Dieter Maurer]

  Branch: refs/heads/allow_multithreading#Zope665
  Home:   https://github.com/zopefoundation/ZServer
  Commit: 1930e85935b66ae748960b43915e0e5a81b3b93e
      https://github.com/zopefoundation/ZServer/commit/1930e85935b66ae748960b43915e0e5a81b3b93e
  Author: dieter <dieter at handshake.de>
  Date:   2019-07-18 (Thu, 18 Jul 2019)

  Changed paths:
    M CHANGES.rst

  Log Message:
  -----------
  fix typo