[Checkins] [zopefoundation/Products.ExternalEditor] 4d9a5c: Update setup.py

[Alessandro Pisa]

  Branch: refs/heads/python3
  Home:   https://github.com/zopefoundation/Products.ExternalEditor
  Commit: 4d9a5ce2c08c20cbf8fd6325e4c980f5cc9be8c0
      https://github.com/zopefoundation/Products.ExternalEditor/commit/4d9a5ce2c08c20cbf8fd6325e4c980f5cc9be8c0
  Author: Alessandro Pisa <alessandro.pisa at gmail.com>
  Date:   2020-10-02 (Fri, 02 Oct 2020)

  Changed paths:
    M setup.py

  Log Message:
  -----------
  Update setup.py

Co-authored-by: Michael Howitz <mh at gocept.com>