Merge pull request #15037 from vladpanainte/gce_fix

remove logging warning from GCE inventory

contrib/inventory/gce.py

@@ -90,6 +90,9 @@ import os
 import argparse
 import ConfigParser
 
+import logging
+logging.getLogger('libcloud.common.google').addHandler(logging.NullHandler())
+
 try:
     import json
 except ImportError: