Relax the failure conditions for StopTest - syslog-ng just looses too many

messages over the wire.  Realistically, we dont actually reach that part
of the test unless the node did in fact shutdown so I dont see this as
a problem.

CVS patchset: 6760
CVS date: 2005/06/21 11:49:51

Mercurial revision: 40e23a75faffc53cbf0bfb56591091840bf04889