standards/172273: unsetenv(3) issue according to autoconf

[Ed Maste]

The following reply was made to PR standards/172273; it has been noted by GNATS.

From: Ed Maste <emaste at freebsd.org>
To: Andrey Chernov <ache at vniz.net>
Cc: FreeBSD-gnats-submit at freebsd.org
Subject: Re: standards/172273: unsetenv(3) issue according to autoconf
Date: Tue, 2 Oct 2012 12:29:24 -0400

 > Attached simple patch should fix this issue (failing on test 3).
 
 Thanks, that fixes it.
 
 Your comment is missing a . and occurrences has two 'r's though.
 
 -Ed