Features:
+* chown() tty a service is attached to after the service goes down
+
* optionally, if a per-partition GPT flag is set for the root/home/… partitions
format the partition on next boot and unset the flag, in order to implement
factory reset. also, add a second flag that simply indicates whether such a
zero and is not open anymore, while the latter happens when a file is
unlinked from any dir.
-* port systemctl, systemd-inhibit, busctl, … over to format-table.[ch]'s table formatters
+* port systemctl, busctl, … over to format-table.[ch]'s table formatters
* pid1: lock image configured with RootDirectory=/RootImage= using the usual nspawn semantics while the unit is up