The test target existed before, this is to provide a legacy interface to
allow easy testing for downstream Docker CE.
Without this we would need separate Makefiles/Jenkinsfiles for releases
past 17.07. Later on this target could also be used to test both unit
tests and integration tests at the same time.
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
Upstream-commit: d53c8de06b
Component: cli