Merge pull request #4094 from robin2008/working

Make dbstat.py script could run by itself.

xCAT-probe/scripts/dbstats.py

@@ -1,5 +1,5 @@
+#!/usr/bin/env python
 # -*- encoding: utf-8 -*-
-# !/usr/bin/python
 from __future__ import print_function
 import argparse
 import json