--- a/tests/test-extension.t	Tue Jul 24 22:51:11 2018 -0700
+++ b/tests/test-extension.t	Tue Jul 24 10:22:07 2018 -0700
@@ -1683,6 +1683,7 @@
   *** failed to import extension deprecatedcmd from $TESTTMP/deprecated/deprecatedcmd.py: missing attributes: norepo, optionalrepo, inferrepo
   *** (use @command decorator to register 'deprecatedcmd')
   hg: unknown command 'deprecatedcmd'
+  (use 'hg help' for a list of commands)
   [255]
 
  the extension shouldn't be loaded at all so the mq works: