[Service]
Type=oneshot
RemainAfterExit=yes
-ExecStart=@rootlibexecdir@/systemd-update-utmp reboot
-ExecStop=@rootlibexecdir@/systemd-update-utmp shutdown
+ExecStart={{ROOTLIBEXECDIR}}/systemd-update-utmp reboot
+ExecStop={{ROOTLIBEXECDIR}}/systemd-update-utmp shutdown