fix openmanage checks
fix openmanage checks

The openmanage checks were using both argparse and sys.args for optional
and positional arguments. This change removes the sys.args in favor of
using just one option parser.

Signed-off-by: Kevin Carter <ffb54fded2f22052678e45d78b58d223654eb6fa@rackspace.com>

briancurtin/rpc-maas,cloudnull/rpc-maas,npawelek/rpc-maas,cloudnull/rpc-maas,briancurtin/rpc-maas,briancurtin/rpc-maas,cfarquhar/rpc-maas,cfarquhar/rpc-maas,cfarquhar/rpc-maas,npawelek/rpc-maas,npawelek/rpc-maas,cloudnull/rpc-maas