[Checkins] [zopefoundation/Zope] fd561f: Fix typo

[Jürgen Gmach]

  Branch: refs/heads/jugmac00-patch-1
  Home:   https://github.com/zopefoundation/Zope
  Commit: fd561f57d0a6b118e5c61fd884c760a216e57d94
      https://github.com/zopefoundation/Zope/commit/fd561f57d0a6b118e5c61fd884c760a216e57d94
  Author: Jürgen Gmach <juergen.gmach at googlemail.com>
  Date:   2020-02-28 (Fri, 28 Feb 2020)

  Changed paths:
    M src/ZTUtils/Tree.py

  Log Message:
  -----------
  Fix typo