[Checkins] [zopefoundation/Products.MailHost] a2b46d: Update dependency pinning.

[Jürgen Gmach]

  Branch: refs/heads/fix-make-changes-2.13
  Home:   https://github.com/zopefoundation/Products.MailHost
  Commit: a2b46d2b9d123bdac7435bcedb0f9d34f813707d
      https://github.com/zopefoundation/Products.MailHost/commit/a2b46d2b9d123bdac7435bcedb0f9d34f813707d
  Author: Jürgen Gmach <juergen.gmach at googlemail.com>
  Date:   2019-05-29 (Wed, 29 May 2019)

  Changed paths:
    M buildout.cfg

  Log Message:
  -----------
  Update dependency pinning.

modified:   buildout.cfg