Imports of readme_test command

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/docker/docker/libnetwork
github.com/docker/docker/libnetwork/config
github.com/docker/docker/libnetwork/netlabel
github.com/docker/docker/libnetwork/options
github.com/docker/docker/pkg/reexec
logPackage log implements a simple logging package.