fix rpz test

- work around a CR newline problem
- use rndc to stop servers

bin/tests/system/rpz/tests.sh

@@ -358,7 +358,7 @@ addr () {
     digcmd $2 >$DIGNM
     #ckalive "$2" "server crashed by 'dig $2'" || return 1
     ADDR_ESC=`echo "$ADDR" | sed -e 's/\./\\\\./g'`
-    ADDR_TTL=`sed -n -e "s/^[-.a-z0-9]\{1,\}[	 ]*\([0-9]*\)	IN	AA*	${ADDR_ESC}\$/\1/p" $DIGNM`
+    ADDR_TTL=`tr -d '\r' < $DIGNM | sed -n -e "s/^[-.a-z0-9]\{1,\}[	 ]*\([0-9]*\)	IN	AA*	${ADDR_ESC}\$/\1/p"`
     if test -z "$ADDR_TTL"; then
 	setret "'dig $2' wrong; no address $ADDR record in $DIGNM"
 	return 1
@@ -430,7 +430,7 @@ for mode in native dnsrps; do
       continue
     fi
     echo_i "attempting to configure servers with DNSRPS..."
-    $PERL $SYSTEMTESTTOP/stop.pl rpz
+    $PERL $SYSTEMTESTTOP/stop.pl --use-rndc --port ${CONTROLPORT} rpz
     $SHELL ./setup.sh -N -D $DEBUG
     for server in ns*; do
       resetstats $server
@@ -741,7 +741,7 @@ EOF
 
   # restart the main test RPZ server to see if that creates a core file
   if test -z "$HAVE_CORE"; then
-    $PERL $SYSTEMTESTTOP/stop.pl rpz ns3
+    $PERL $SYSTEMTESTTOP/stop.pl --use-rndc --port ${CONTROLPORT} rpz ns3
     restart 3
     HAVE_CORE=`find ns* -name '*core*' -print`
     test -z "$HAVE_CORE" || setret "found $HAVE_CORE; memory leak?"