oc: Set log level to 0 in samba-get-config script - it is very chatty during builds

This script is very "chatty" when "log level" is set to a high number
(usual scenario on developer machine)

OpenChange/samba-get-config.py

@@ -4,5 +4,6 @@ import sys
 import samba.param
 
 a = samba.param.LoadParm()
+a.set('debug level', '0')
 a.load_default()
 print a.get(sys.argv[1])