Issue 13870: Fix out of date comment.
diff --git a/Lib/collections.py b/Lib/collections.py
index d2625fe..eb20243 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -33,7 +33,7 @@
     # The circular doubly linked list starts and ends with a sentinel element.
     # The sentinel element never gets deleted (this simplifies the algorithm).
     # The sentinel is in self.__hardroot with a weakref proxy in self.__root.
-    # The prev/next links are weakref proxies (to prevent circular references).
+    # The prev links are weakref proxies (to prevent circular references).
     # Individual links are kept alive by the hard reference in self.__map.
     # Those hard references disappear when a key is deleted from an OrderedDict.