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From: Doug McIlroy <doug@cs.dartmouth.edu>
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Date: Thu, 02 Jan 2020 16:38:00 -0500
To: tuhs@tuhs.org, larry.kollar@me.com
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Subject: Re: [TUHS] GNUism in groff tests, was: pic anomalies
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I have always marveled at folks who can maintain multiple
versions of software, but Larry's dispatch from the
trenches reveals hurdles I hadn't imagined. Kudos for
keeping groff alive. 

Speaking of which, many thanks to all who pitched in
on the %% nit that I reported. The instant response
compares rather favorably to an open case I've been
following in gcc, which was originally filed in 2002.

Doug