Without this service, hostnamectl fails to run in the initrd.
```
sh-5.2# hostnamectl
Failed to query system properties: Could not activate remote peer: activation request failed: unknown unit.
sh-5.2# systemctl status dbus | grep hostname
Dec 22 11:07:56 sd-net-test dbus-broker-launch[216]: Activation request for 'org.freedesktop.hostname1' failed: The systemd unit 'dbus-org.freedesktop.hostname1.service' could not be found.
```
"$systemdutildir"/systemd-hostnamed \
"$systemdsystemunitdir"/systemd-hostnamed.service \
"$systemdsystemunitdir/systemd-hostnamed.service.d/*.conf" \
+ "$systemdsystemunitdir"/dbus-org.freedesktop.hostname1.service \
hostnamectl
# Install the hosts local user configurations if enabled.