[Checkins] [zopefoundation/martian] 8add91: Adjusted to suggestions of @mgedmin and @hugovk.

[GitHub]

  Branch: refs/heads/update-python-versions
  Home:   https://github.com/zopefoundation/martian
  Commit: 8add91ed5c7c67390c9fab186af5f257067b1cdf
      https://github.com/zopefoundation/martian/commit/8add91ed5c7c67390c9fab186af5f257067b1cdf
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-10-11 (Wed, 11 Oct 2017)

  Changed paths:
    M .travis.yml
    M src/martian/tests/test_all.py

  Log Message:
  -----------
  Adjusted to suggestions of @mgedmin and @hugovk.