[Kst-plot/kst] 2413df: Continue unbreaking Travis macOS

[Barth Netterfield]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 2413dfb8aeb4d9cc1adc2171888d8590b436e015
      https://github.com/Kst-plot/kst/commit/2413dfb8aeb4d9cc1adc2171888d8590b436e015
  Author: Barth Netterfield <netterfield at astro.utoronto.ca>
  Date:   2017-08-18 (Fri, 18 Aug 2017)

  Changed paths:
    M cmake/travis-mac.sh

  Log Message:
  -----------
  Continue unbreaking Travis macOS