--- a/tests/test-branch-change.t	Tue May 04 11:20:10 2021 +0200
+++ b/tests/test-branch-change.t	Mon May 17 15:15:44 2021 -0700
@@ -151,7 +151,7 @@
 
   $ hg branch -r 4 --hidden foobar
   abort: cannot change branch of 3938acfb5c0f, as that creates content-divergence with 7c1991464886
-  (add --verbose for details)
+  (add --verbose for details or see 'hg help evolution.instability')
   [10]
 
 Make sure bookmark movement is correct