docker_cli/import_export: Remove test for removed option

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/kill_bad: Fix incorrect configuration option

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/version: Fix DockerCmdBase

It's possible the timeout may come in as other than
a float, such as a string of a float.  Guarantee
float-conversion in base-class init().

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/invalid: Update & cleanup test

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/run_env: Add more logging

Signed-off-by: Chris Evich <cevich@redhat.com>
docker_cli/help: Ignore exit code from help commands

It's reasonable for them to return non-zero.  The usage
info appearing on stdout is more important.

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