I would like to see FreeBSD provide the crontab extensions found in OpenBSD
that implement `-n` to suppress mail on successful run and `-q` to suppress
logging of command execution.
The `-q` option appears decades old, but `-n` is relatively new. The
original proposal by Job Snijder can be found here [1], and gives very
convincing reasons for inclusion in base.
This patch is a nearly identical port of OpenBSD cron for `-q` and `-n`
features. It is written to follow existing conventions and style of the
existing codebase. I'm also not good at writing manpages but gave it my best
shot.
[1]: https://marc.info/?l=openbsd-tech&m=152874866117948&w=2