From owner-freebsd-stable@FreeBSD.ORG  Wed Sep 26 17:03:02 2012
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id B47AF1065672
	for <freebsd-stable@FreeBSD.org>; Wed, 26 Sep 2012 17:03:02 +0000 (UTC)
	(envelope-from uqs@FreeBSD.org)
Received: from acme.spoerlein.net (acme.spoerlein.net
	[IPv6:2a01:4f8:131:23c2::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 4CA8B8FC08
	for <freebsd-stable@FreeBSD.org>; Wed, 26 Sep 2012 17:03:02 +0000 (UTC)
Received: from localhost (acme.spoerlein.net [IPv6:2a01:4f8:131:23c2::1])
	by acme.spoerlein.net (8.14.5/8.14.5) with ESMTP id q8QH2wOp099220
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
	Wed, 26 Sep 2012 19:03:00 +0200 (CEST)
	(envelope-from uqs@FreeBSD.org)
Date: Wed, 26 Sep 2012 19:02:58 +0200
From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@FreeBSD.org>
To: Jamie Paul Griffin <jamie@kode5.net>
Message-ID: <20120926170258.GI69724@acme.spoerlein.net>
Mail-Followup-To: Jamie Paul Griffin <jamie@kode5.net>,
	freebsd-stable@freebsd.org
References: <20120925115801.GE6954@kontrol.kode5.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20120925115801.GE6954@kontrol.kode5.net>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: freebsd-stable@FreeBSD.org
Subject: Re: Problem with zcat uncompressing man pages
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 26 Sep 2012 17:03:02 -0000

On Tue, 2012-09-25 at 12:58:01 +0100, Jamie Paul Griffin wrote:
> Hi
> 
> When I read 'certain' -- not all -- man pages zcat writes a small error to stderr when opening the man page; however, the man page does actually open. The message i get on the terminal is: 
> 
> 	zcat: error writing to output: Broken pipe
> 	zcat: /usr/local/man/man5/muttrc.5.gz: uncompress failed
> 
> When closing the man page, another message is shown on stderr:
> 
> 	grotty:<standard input> (<standard input>):54131:fatal error: output error
> 
> 
> Would anyone here know the possible cause and fix for this issue?

Well, what is /usr/local/man/man5/muttrc.5.gz?

ls -l /usr/local/man/man5/muttrc.5.gz
file /usr/local/man/man5/muttrc.5.gz
zcat /usr/local/man/man5/muttrc.5.gz | head -5
xxd /usr/local/man/man5/muttrc.5.gz | head

It looks like you simple have a garbled manpage, and the catpage is
displayed instead.

Cheers
Uli