--version is misleading

[yoavrotems]

Recently we changed the directories name from the docker version to CIS versions name 760dc61
Which means currently --version expect cis version input (eg cis-1.2)
But we didn't change to --version help massage which is:
--version string Specify Docker version, automatically detected if unset
that lead me to think about that we should still support docker version input and not only cis version input