[Checkins] [zopefoundation/zope.app.form] 3c34a5: Use Python 3.8 final on Travis CI

[Marius Gedminas]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.app.form
  Commit: 3c34a53ec830c4072e09e7f17a22f1299c2bf607
      https://github.com/zopefoundation/zope.app.form/commit/3c34a53ec830c4072e09e7f17a22f1299c2bf607
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-10-23 (Wed, 23 Oct 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Use Python 3.8 final on Travis CI