Update travis ccache settings as per documentation.
commit9a21941c5c9a4c66522e23ceac73624dd71a0fd6
authorDominic Clifton <dominic.clifton@cleanflight.com>
Wed, 24 Aug 2016 17:06:56 +0000 (24 19:06 +0200)
committerDominic Clifton <dominic.clifton@cleanflight.com>
Wed, 24 Aug 2016 17:06:56 +0000 (24 19:06 +0200)
tree21c51584152e3a3e453c13efd11d65e762c425f1
parent3172fa20f71a89ccfbabd040f74ad65ce176d8ce
Update travis ccache settings as per documentation.

https://docs.travis-ci.com/user/caching/#ccache-cache
.travis.yml