Github user justinleet commented on the issue:
https://github.com/apache/metron/pull/632
@JonZeolla Completely counterintuitively, `sudo: required` is the
counterpart of `sudo: false`. So this already got taken care of as part of
METRON-1004. See: https://docs.travis-ci.com/user/trusty-ci-environment.
If you check out the Travis build
(https://travis-ci.org/apache/metron/jobs/250503026, for example), it says it's
running the Trusty as expected.
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