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

[linimon at FreeBSD.org]

Synopsis: unsetenv(3) issue according to autoconf

State-Changed-From-To: open->patched
State-Changed-By: linimon
State-Changed-When: Mon Oct 8 03:48:51 UTC 2012
State-Changed-Why: 
assign and set as MFC reminder.


Responsible-Changed-From-To: freebsd-standards->ache
Responsible-Changed-By: linimon
Responsible-Changed-When: Mon Oct 8 03:48:51 UTC 2012
Responsible-Changed-Why: 

http://www.freebsd.org/cgi/query-pr.cgi?pr=172273