--- a/mercurial/dispatch.py	Tue Aug 30 09:25:00 2016 -0700
+++ b/mercurial/dispatch.py	Sat Aug 27 00:00:28 2016 +0900
@@ -929,7 +929,7 @@
                 break
 
             # Never blame on extensions bundled with Mercurial.
-            if testedwith == 'ships-with-hg-core':
+            if extensions.ismoduleinternal(mod):
                 continue
 
             tested = [util.versiontuple(t, 2) for t in testedwith.split()]