All periodic sub-scripts <larf> now have their return codes interpreted
by periodic(8). Output may be masked based on variable values in
periodic.conf.
It's also now possible to email periodic output to arbitrary addresses,
or to send it to a log file, examples of which can be found in
newsyslog.conf.
The upshot of it all should be no discernable changes to the default
behaviour of periodic(8).
PR: 21250
the command-line arguments to be used for the call to df(1) when
daily_status_disks_enable is set to YES.
The name of the new variable was chosen by the maintainer of our
periodic hierarchy, Brian Somers.
PR: 19631
The only change in the default functionality should be that
the output reports are slightly more verbose WRT files deleted.
Not objected to by: freebsd-arch
