From mboxrd@z Thu Jan  1 00:00:00 1970
From: "rob pike" <rob@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
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Subject: [9fans] Y2K
Date: Sat, 17 Mar 2001 11:10:35 -0500
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Sharp-eyed Ellis noticed that the "printed" date on man pages
was wrong. It's due to a mistake in a fix to a fix to get Y2K
right in troff.  Here's the fix to the mistake: change the line
in /sys/lib/tmac/tmac.an from

.nr yD (\\n(yr%100

to

.nr yD (\n(yr%100

The extra backslash confused troff, causing it to leave yD
unset, which coincidentally gives it the value 0, which is
why we thought the code was right last year.

I am sure this is not the last Y2K bug in troff and its
relatives.

-rob