add publish_test.sh tools in mqttd

guowenxue

2019-06-26 1d2b49e4c8d6a3c93973772e661900dfff8c6102

 modules/python/sht20.py

old mode 100644
new mode 100755
@@ -1,4 +1,6 @@
#!/usr/bin/python
#-*- coding: utf-8 -*-

import fcntl
import time
import unittest