[logback-dev] [qos-ch/logback] ad062f: try to make travis happy

[Ceki Gulcu]

  Branch: refs/heads/master
  Home:   https://github.com/qos-ch/logback
  Commit: ad062fb53310d320afe13d5e195d6221ef5cc7eb
      https://github.com/qos-ch/logback/commit/ad062fb53310d320afe13d5e195d6221ef5cc7eb
  Author: Ceki Gulcu <ceki at qos.ch>
  Date:   2019-08-13 (Tue, 13 Aug 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  try to make travis happy