bash completion for `docker cp` supports copying both ways
bash completion for `docker cp` supports copying both ways

Signed-off-by: Harald Albers <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@albersweb.de>

circleci/docker,makinacorpus/docker,circleci/docker,circleci/docker,solanolabs/docker,solanolabs/docker,makinacorpus/docker,makinacorpus/docker,solanolabs/docker