The sudo tag is now deprecated in Travis CI
The sudo tag is now deprecated in Travis CI

__sudo: required__ no longer is...  [Travis are now recommending removing the __sudo__ tag](https://blog.travis-ci.com/2018-11-19-required-linux-infrastructure-migration).

"_If you currently specify __sudo:__ in your __.travis.yml__, we recommend removing that configuration_"
viblo/pymunk,viblo/pymunk