It is simpler to persuade those few daemons that want to update resolv.conf to do something else (e.g. talk to networkmanager), than to ensure that every progra

It is simpler to persuade those few daemons that want to update resolv.conf to do something else (e.g. talk to networkmanager), than to ensure that every program that directly reads resolv.conf is updated for the new syntax. Programs are not supposed to read resolv.conf and implement their own resolver anyway (due to nss), but many still do.