[mapserver-commits] [mapserver/mapserver] 6b4378: .travis.yml: add ccache to speed up builds

[Even Rouault]

  Branch: refs/heads/cherry-pick-backport-5827-to-branch-7-4-3858d7ba-13ba-4ad9-b7bc-ae3ec4cc06f9
  Home:   https://github.com/mapserver/mapserver
  Commit: 6b437820a49c04d367cb6ad95b64d44dfab90cf8
      https://github.com/mapserver/mapserver/commit/6b437820a49c04d367cb6ad95b64d44dfab90cf8
  Author: Even Rouault <even.rouault at spatialys.com>
  Date:   2019-06-21 (Fri, 21 Jun 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  .travis.yml: add ccache to speed up builds