I think I found a real problem this time:
Because the word "indent" is "too short",
it ends up wrecking it's item's indentation:
(pun: "indent" indentation not intended)
$ man pandoc
indent paragraph indent (e.g. 2m)
lineheight
line height (e.g. 12p)
pointsize
point size (e.g. 10p)
https://github.com/jgm/pandoc/edit/main/MANUAL.txt
shows everything is normal here:
`indent`
: paragraph indent (e.g. `2m`)
`lineheight`
: line height (e.g. `12p`)
`pointsize`
: point size (e.g. `10p`)
So the problem must be elsewhere.
This is just how the man program lays out a .TP (tagged paragraph). If it has room, it uses the same line, otherwise it puts the content on the next line. Not a bug.
OK but sure got me scratching my head. Therefore perhaps don't write the man page that way. All I know is I've used Unix / Linux since the 1980s and have never ran into this. So just write the man page the way the GNU people write theirs. What other man pages are there on Debian that mess up that bad? I never encountered any. Even with my narrow Chromebook.