add group key (#2967)

as announced here: https://blog.travis-ci.com/2017-12-01-new-update-schedule-for-linux-build-images
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tooomm 2017-12-19 00:17:31 +01:00 committed by Zach H
parent b75882b6b9
commit 5b8e0dc8ec

View file

@ -1,4 +1,5 @@
sudo: required # forces legacy build infrastructure
group: travis_lts # forces most stable build images
language: cpp