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Date: Mon, 29 Jun 2015 20:37:34 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: Patrick Kelsey <pkelsey@freebsd.org>, sbruno@freebsd.org
CC: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
Subject: Re: sysctl(3) man page examples
References: <558F1D88.8010407@ignoranthack.me>
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On 06/28/15 08:26, Patrick Kelsey wrote:
> s a sysctl entry for it (containing an empty
> string)

Hi,

FYI:

Until r267960 zero-length strings were not listed by sysctl, which might 
be part of the reason this bug has not been seen before.

--HPS