At 2021-07-29T19:23:20+0200, Pali Rohár wrote:
> How do you prefer to format this part? \fBB0\fP, ..., \fBB9600\fP

I'd use the B or BR macro to set the literals, depending on whether they
are directly followed by something that should be in the roman style,
and I would definitely set the ellipsis in roman; when used as such,
it should never be set in bold or italics.  Use of the ellipsis in *roff
input requires some care, which is unfortunately often neglected.

.BR B0 ,
\&.\|.\|.\|,
.B 9600

(I dithered over inclusion of the thin space escape sequence \| between
the ellipsis and the comma.  I can see arguments either way, and a quick
Internet search does not suggest to me a strong wind in either
direction.  Since its presence or absence makes no difference for
terminal output, I expect most writers of man pages won't care.)

Regards,
Branden