'Return all addrs of vhost with the port replaced with the specified.
:param obj.VirtualHost ssl_vhost: Original Vhost
:param str port: Desired port for new addresses
:returns: `set` of :class:`~obj.Addr`'

def _get_proposed_addrs(self, vhost, port='80'):

    redirects = set()
    for addr in vhost.addrs:
        redirects.add(addr.get_addr_obj(port))
    return redirects
