The graphtest package is only imported in the test files of other
packages therefore we do not leak testing flags.
Signed-off-by: Michael Crosby <michael@docker.com>
This prevents the testing package flags from leaking into the flagsets
of binaries that import docker. I left integration-cli alone.
Docker-DCO-1.1-Signed-off-by: Peter Bourgon <peter@bourgon.org> (github: peterbourgon)