This is the script that runs 'skopeo COMMAND --help' and
cross-checks that all the option flags are documented
in man pages, and vice-versa (all options listed in man
pages appear in COMMAND's --help message).
Copied from podman, with changes for skopeo-land (removing
the rst checks, and conforming to skopeo conventions).
Signed-off-by: Ed Santiago <santiago@redhat.com>