add shebang line to default to python3

Carl Chang · Carl Chang · commit b202ff7ac9eb · 2019-04-03T17:28:18.000+08:00
diff --git a/check_snmp.py b/check_snmp.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python3
+
 import os
 import sys
 import subprocess
