🚀 go-pugleaf

Tom Quinn (trq@dionysos.thphys.ox.ac.uk) proposes the following addition to
tmac.an:

	.ie n \{\
	.       ds lq \&"\"
	.       ds rq \&"\"
	.\}
	.el \{\
	.       ds rq ''
	.       ds lq ``
	.\}

Let me propose the following simpler addition instead.
This should generate better-looking output, too.

	.ds lq \(lq
	.ds rq \(rq

You might consider similar patches to the other groff macro packages
that define double-quote, e.g.:

diff old/macros/doc-ditroff new/macros/doc-ditroff
98,99c98,105
< .ds Lq \&``
< .ds Rq \&''
---
> .ie "\(lq"" \{\
> .	ds Lq \&``
> .	ds Rq \&''
> .\}
> .el \{\
> .	ds Lq \(lq
> .	ds Rq \(rq
> .\}
diff old/macros/tmac.s new/macros/tmac.s
1728,1729c1728,1729
< .ds Q \)``\)
< .ds U \)''\)
---
> .ds Q \(lq
> .ds U \(rq