[bug #62471] [tbl] horizontal and vertical rules are drawn too long in nroff mode

[G. Branden Robinson]

Follow-up Comment #6, bug #62471 (project groff):

Quoting bug #63749:


.ll 64n
.nf
1234567890123456789012345678901234567890123456789012345678901234
.fi
.TS
tab(@);
L L L L L.
abandoning@babysitter@cablecasts@dachshunds@earmarkingX
.TE
.pl \n(nlu


> 2.  In the first table, if we add another character to the last entry and a
horizontal line on another row, the table will overrun the line length with no
warning.  This is an aspect of bug #62471.

> 3.  It might be possible to address that case, and the straggling vertical
line case, by drawing horizontal and vertical lines 1n shorter on _nroff_
devices if no line intersection will take place.  (Accommodation of that
scenario is why they are drawn too long in the first place.)  My changes to
_tbl_ over the last year or so track more state about `hline` and `vline`
usage, so this may be tractable.


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