[Checkins] [zopefoundation/zope.sendmail] 0619e9: Install the coverage-python-version plugin on Travis

[Marius Gedminas]

  Branch: refs/heads/fix-coverage
  Home:   https://github.com/zopefoundation/zope.sendmail
  Commit: 0619e9dc78ffec2d9f6c6e32d86dd42eab577862
      https://github.com/zopefoundation/zope.sendmail/commit/0619e9dc78ffec2d9f6c6e32d86dd42eab577862
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-02-07 (Thu, 07 Feb 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Install the coverage-python-version plugin on Travis