docker_cli/events: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/ps_size: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/psa: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/rm: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/rmi: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/run_memory: Pylint/pep8 cleanups

Signed-off-by: Chris Evich <cevich@redhat.com>