Minor tweaking of previous r78734, and add a NEWS entry.
diff --git a/Lib/test/test_posixpath.py b/Lib/test/test_posixpath.py
index 3af646f..2288c48 100644
--- a/Lib/test/test_posixpath.py
+++ b/Lib/test/test_posixpath.py
@@ -327,7 +327,7 @@
 
 
 class PosixCommonTest(test_genericpath.CommonTest):
-    path = posixpath
+    pathmodule = posixpath
     attributes = ['relpath', 'samefile', 'sameopenfile', 'samestat']