1994-12-12 - extra dashes in PGP-related blocks?

Header Data

From: jrochkin@cs.oberlin.edu (Jonathan Rochkind)
To: cypherpunks@toad.com
Message Hash: 6fa4b707db9c8d1404fefe0898c825864eacbc6cde4b5fe337a1c6dba262cea1
Message ID: <ab124e4c0302100420d1@[]>
Reply To: N/A
UTC Datetime: 1994-12-12 19:02:04 UTC
Raw Date: Mon, 12 Dec 94 11:02:04 PST

Raw message

From: jrochkin@cs.oberlin.edu (Jonathan Rochkind)
Date: Mon, 12 Dec 94 11:02:04 PST
To: cypherpunks@toad.com
Subject: extra dashes in PGP-related blocks?
Message-ID: <ab124e4c0302100420d1@[]>
MIME-Version: 1.0
Content-Type: text/plain

When people have been posting their public keys, or encrypted address
blocks, to various lists I'm on, all of the "-----BEGIN whatever..." lines
seem to have a "- " preppended to them. So, for instance, they look like:

Version: 2.6.2
- -----END PGP MESSAGE-----

I'm guessing if I really sent a block like that to a remailer, the remailer
would hork because of the prepended "- "s.  I know that sometimes people's
public keys they've posted to a list look like that, and when I try to add
them to PGP, it horks, and I've got to go into a text editor and remove the
"- ", and then add it to my keyring.

Does anyone know what it is that's putting in these "- "s, why it's putting
them in, and how to stop it?