That section, likely a short one, could just mention mandoc -T lint and using igor, but would still be useful to those (like me) making their first foray into manual page writing or revising.
Seems the problem is solved, https://docs.freebsd.org/en/books/fdp-primer/manual-pages/#manual-pages-testing Bye and thanks for the report.
Thanks, and belated thanks to fernape@ for <https://github.com/freebsd/freebsd-doc/commit/59e3915e5ca57b7a1be87a01f909929d554d6626> – I did find the current section of the primer very useful, in recent weeks, after I began learning about mdoc. Incidentally, from recent <https://lists.freebsd.org/archives/freebsd-hackers/2023-August/002438.html>: > … > deroff(1) removes a little too much; > <https://reviews.freebsd.org/P600$148-153>. > > … Over to freebsd-hackers, please, for anyone who'd like to continue the broader discussion, which had a spell-checking context.