--- a/tests/test-devel-warnings.t	Tue Dec 06 14:57:47 2016 +0000
+++ b/tests/test-devel-warnings.t	Tue Dec 06 17:06:39 2016 +0000
@@ -174,6 +174,6 @@
   ** Mercurial Distributed SCM (*) (glob)
   ** Extensions loaded: * (glob)
   Traceback (most recent call last):
-  RuntimeError: programming error: transaction requires locking
+  mercurial.error.ProgrammingError: transaction requires locking
 
   $ cd ..