Changed import path from a deprecated path to the kosher one.

levkowetz · levkowetz · commit 61841708286d · 2018-02-22T00:01:01.000Z
- Legacy-Id: 14667
diff --git a/ietf/doc/tests_downref.py b/ietf/doc/tests_downref.py
@@ -3,7 +3,7 @@
 
 from __future__ import unicode_literals
 
-from django.core.urlresolvers import reverse as urlreverse
+from django.urls import reverse as urlreverse
 
 import debug    # pyflakes:ignore
 
