Features:
+* systemd-notify: fake ucred of msg to PID of parent, if that works, with fallback to our own if it doesn't.
+
* machined: make sure we can restart machined without losing machines
* machined/machinectl: sort IP addresses we return by scope and protocol
* machined: write NSS module for looking up IP addresses for machines
* timesyncd:
- hookup with networkd: NTP servers from dhcp
- - hookup with networkd: listen to online/offline state
* a way for container managers to turn off getty starting via $container_headless= or so...