Only match on log messages containing fail,invalid,

bad or illegal. This prevents matching on systems that
have a name that matches the query.

PR:		conf/107560
Submitted by:	Christian Laursen <cfsl at pil dot dk>
MFC after:	3 days
Approved by:	imp (mentor)

etc/periodic/security/800.loginfail

@@ -59,7 +59,7 @@ case "$daily_status_security_loginfail_enable" in
     [Yy][Ee][Ss])
 	echo ""
 	echo "${host} login failures:"
-	n=$(catmsgs | egrep -ia "^$yesterday.*(fail|invalid|bad|illegal)" |
+	n=$(catmsgs | egrep -ia "^$yesterday.*: .* (fail|invalid|bad|illegal)" |
 	    tee /dev/stderr | wc -l)
 	[ $n -gt 0 ] && rc=1 || rc=0;;
     *)	rc=0;;