docs/122818: [patch] system.2 missing ".Sh RETURN VALUES"

[danger at FreeBSD.org]

Synopsis: [patch] system.2 missing ".Sh RETURN VALUES"

Responsible-Changed-From-To: freebsd-doc->danger
Responsible-Changed-By: danger
Responsible-Changed-When: Thu Jun 26 08:25:22 UTC 2008
Responsible-Changed-Why: 
Take

http://www.freebsd.org/cgi/query-pr.cgi?pr=122818