The reason it doesn't do this at the moment (except for it being 'out of the 
way') is that it would require the stylesheet to be quite smart about it.  I 
don't know groff well enough to know what things at the beginning of the line 
are 'special'.

As it is, we don't escape things like '\' in a para, which we ought to.  I'd 
rather not have to go hunting for '.' and whatever else as well if I can help 
it. :-)

Which viewers in particular don't display these long lines properly?

Closing, no input.