[Checkins] [zopefoundation/Zope] bdf93a: - update to z3c.pt to fix #716

[Jens Vagelpohl]

  Branch: refs/heads/4.x
  Home:   https://github.com/zopefoundation/Zope
  Commit: bdf93a63b8e70ab559dd2a3cf271601c5e720b9e
      https://github.com/zopefoundation/Zope/commit/bdf93a63b8e70ab559dd2a3cf271601c5e720b9e
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2020-03-31 (Tue, 31 Mar 2020)

  Changed paths:
    M constraints.txt
    M requirements-full.txt
    M versions-prod.cfg

  Log Message:
  -----------
  - update to z3c.pt to fix #716