Which comma style does the FreeBSD handbook use? Or is that up to individual contributors and editors?

[Pau Amma]

I've seen examples of both styles in the handbook, eg
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/audit-administration.html
and
https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-usb-tethering.html,
so I'm unsure.

Important note: I'm only asking which one (if not both) the FreeBSD
handbook is actually using. All arguments about what it should use
(instead) or which style is better will be cheerfully ignored.