Merge pull request #6676 from zmstone/fix-stop-log

chore: emqx stop prints ok after stop

bin/emqx

@@ -632,6 +632,7 @@ case "${COMMAND}" in
             ps -p "$PID"
             exit 1
         fi
+        echo "ok"
         logger -t "${REL_NAME}[${PID}]" "STOP: OK"
         ;;