orphan .Xr in manual pages

[Poul-Henning Kamp]

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In message <202004041753.034HrY0u079081 at gndrsh.dnsmgr.net>, "Rodney W. Grimes" writes:

>And finally, can this "small script" be added to src/tests and possible
>get the CI guys to write a job that catches any growth in that list and
>reports it.

The script was attached to the email, and I'd love for somebody to adopt it,
I just wanted to see how bad the problem was...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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