Allow rt_msg1() to get a NULL as struct rt_addrinfo this simplifies a few callers (plus an upcomming one). OK henning@, dlg@
Allow rt_msg1() to get a NULL as struct rt_addrinfo this simplifies a few
callers (plus an upcomming one). OK henning@, dlg@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars