[Checkins] [zopefoundation/Persistence] 5d8042: Add specifier.

[Michael Howitz]

  Branch: refs/heads/drop-py2
  Home:   https://github.com/zopefoundation/Persistence
  Commit: 5d804274cc27c1ec5da53b602556e6f02216d744
      https://github.com/zopefoundation/Persistence/commit/5d804274cc27c1ec5da53b602556e6f02216d744
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-04-24 (Fri, 24 Apr 2020)

  Changed paths:
    M setup.py

  Log Message:
  -----------
  Add specifier.