Hi Ingo,

groff -man -Thtml seems to never produce a blank line before a TP.
mandoc -man -Thtml produces one in some cases, and I can't see a
pattern.

I found this bug while reading feature_test_macros(7) in the Debian
online manpages:
<https://manpages.debian.org/bullseye/manpages/ftm.7.en.html>

To reproduce this bug, run the following in the Linux man-pages repo:

 1999  groff -man -T html man7/feature_test_macros.7 > ftm.g.html
 2000  open ftm.g.html 
 2001  mandoc -man -T html man7/feature_test_macros.7 > ftm.m.html
 2002  open ftm.m.html 


Cheers,
Alex

-- 
<https://www.alejandro-colomar.es/>