svn commit: r332158 - head/Mk

[Takefu]

www/squid33 of releng_8 cannot be installed.
The following patches keep happy.

--- Mk/bsd.port.mk.orig	2013-10-31 02:47:48.000000000 +0900
+++ Mk/bsd.port.mk	2013-10-31 11:11:34.000000000 +0900
@@ -4155,6 +4155,8 @@
 .if defined(WITH_PKGNG)
 _UG_OUTPUT=	${WRKDIR}/users-groups.sh
 PKGPREINSTALL+=	${_UG_OUTPUT}
+.else
+_UG_OUTPUT=	/dev/null
 .endif
 .endif
 create-users-groups: