/etc/rc.reboot does not work on latest 2.4.4 snapshot
/etc/rc.reboot calls "/sbin/reboot now" and apparently that has been disabled in 11.2-PRE, see https://github.com/freebsd/freebsd/commit/0b35cef2b2407a037c58163e4b91d921ba2eb227
So we need to take the "now" off, since it is no longer necessary nor accepted.
Remove 'now' from reboot command, it is no longer accepted or necessary. Fixes #8495