perl -v gives different answer, what gives

[Jim Budler]

gnb at bby.oz (Gregory N. Bond) writes:

[stuff about a particular bug]

} leo% ./perl -v
} $Header: perly.c,v 3.0.1.1 89/11/11 04:50:04 lwall Locked $
} Patch level: 4

} Copyright (c) 1989, Larry Wall

} Perl may be copied only under the terms of the GNU General Public License,
} a copy of which can be found with the Perl 3.0 distribution kit.

[more stuff about the bug]

} --
} Gregory Bond, Burdett Buckeridge & Young Ltd, Melbourne, Australia

I read this and decided to perl -v just to check and was surprised to get a
different output. At first glance I thought the end was truncated somehow.
Then I notices a line (Patch level:) was missing out of the middle!

So I started this note in emacs, and did M-! perl -v to capture the
output for my post, and it was the same as above! So I experimented
a little and here's a script using perl -v and perl -v | cat
to illustrate what I found. I know the problem itself is trivial, but
it must demonstrate some sort of IO problem.
Perhaps with:
	Sun386i SunOS4.0.1

Script started on Mon Nov 13 23:20:42 1989
{/files/home/staff/jim at eda:51} perl -v
$Header: perly.c,v 3.0.1.1 89/11/11 04:50:04 lwall Locked $

Copyright (c) 1989, Larry Wall

Perl may be copied only under the terms of the GNU General Public License,
{/files/home/staff/jim at eda:52} perl -v | cat
$Header: perly.c,v 3.0.1.1 89/11/11 04:50:04 lwall Locked $
Patch level: 4

Copyright (c) 1989, Larry Wall

Perl may be copied only under the terms of the GNU General Public License,
a copy of which can be found with the Perl 3.0 distribution kit.
{/files/home/staff/jim at eda:53} ^D

script done on Mon Nov 13 23:21:09 1989
-- 
Jim Budler	jim at eda.com    ...!{decwrl,uunet}!eda!jim
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