When documented arguments don't exist, the error message points to the
beginning of the definition comment. Point to the first bogus
argument description instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240216145841.2099240-6-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>