ifstated regress small tweak

[Rob Pierce]

I added this recently for some additional coverage so we hit link.down
and link.unknown as well.

Rob

Index: ifstated
===================================================================
RCS file: /cvs/src/regress/usr.sbin/ifstated/ifstated,v
retrieving revision 1.1
diff -u -p -r1.1 ifstated
--- ifstated    14 Jul 2017 10:41:30 -0000      1.1
+++ ifstated    14 Jul 2017 11:59:37 -0000
@@ -100,7 +100,7 @@ state demoted {
        init {
                run "ifconfig"
        }
-       if \$net && \$carp
+       if \$net && ( ! carp${VHIDA}.link.down && ! carp${VHIDA}.link.unknown )
                set-state primary
 }
 EOF