bpo-40275: Use new test.support helper submodules in tests (GH-21451)

diff --git a/Lib/test/test_syslog.py b/Lib/test/test_syslog.py
index 6f902f1..fe09bd3 100644
--- a/Lib/test/test_syslog.py
+++ b/Lib/test/test_syslog.py
@@ -1,6 +1,5 @@
-
-from test import support
-syslog = support.import_module("syslog") #skip if not supported
+from test.support import import_helper
+syslog = import_helper.import_module("syslog") #skip if not supported
 import unittest
 
 # XXX(nnorwitz): This test sucks.  I don't know of a platform independent way