'Driver for Bucket ACL. Calls helpers as needed.
return: (bool, [list of AuditIssues])'

def inspect_acl(self, item):

    acl = item.config.get('Acl')
    errors_acl = []
    if acl:
        err = self._acl_allusers_exists(acl, 'ACL')
        (errors_acl.extend(err) if err else None)
        err = self._acl_max_owners(acl, 'ACL')
        (errors_acl.extend(err) if err else None)
        if errors_acl:
            return (False, errors_acl)
        return (True, None)
    else:
        return (False, ['ACL_NOT_FOUND'])
