Fix a datetime import gotcha

Author: Ickerday

splunklib/client.py

@@ -58,12 +58,11 @@
 """
 
 import contextlib
-import datetime
 import json
 import logging
 import re
 import socket
-from datetime import timedelta
+from datetime import datetime, timedelta
 from time import sleep
 from urllib import parse
 from warnings import deprecated