To prevent fallout of lowering __FreeBSD_version in releng/10.0 branch,
adjust OSVERSION evaluation in ports that specifically use '100050N'.
Approved by: affected maintainers (implicit)
Sponsored by: The FreeBSD Foundation
Run 'freebsd-update fetch' when the system first boots; and if updates are
downloaded, install them and request a reboot.
Obviously, this port is not useful after a system is already running; it is
intended to be included as part of the installation or disk image building
Submitted by: cperciva@FreeBSD.org