freebsd-update EoL "warning" prevents installing latest SAs

[Franco Fichtner]

Hi,

I have two systems running 11.0-p12, freebsd-update
fetches the updates for 11.0-p15, displays all file
changes but bails at the last second, skipping install,
telling that the release is EoL:

https://github.com/freebsd/freebsd/blob/master/usr.sbin/freebsd-update/freebsd-update.sh#L2011

Changing the return value to 0 seems to fix that, it's
probably better to install these updates despite the
EoL...


Cheers,
Franco