diff -r efd1aa8c313c -r ea3f9e171b9a tests/test-evolve.t
--- a/tests/test-evolve.t	Sun Nov 10 16:32:34 2019 +0530
+++ b/tests/test-evolve.t	Sat Dec 14 13:31:45 2019 +0530
@@ -1239,7 +1239,7 @@
   $ hg up 274b6cd0c101^
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg uncommit --all
-  abort: uncommit will orphan 4 descendants
+  abort: performing 'uncommit' in the middle of a stack will orphan 0fd8bfb02de4 and its 3 descendants
   (see 'hg help evolution.instability')
   [255]
   $ hg up 274b6cd0c101
@@ -1296,11 +1296,11 @@
   $ mkcommit c5_
   created new head
   $ hg prune '0ef9ff75f8e2 + f1b85956c48c'
-  abort: prune will orphan 1 descendants
+  abort: performing 'prune' in the middle of a stack will orphan 0d9203b74542
   (see 'hg help evolution.instability')
   [255]
   $ hg prune '98e171e2f272::0d9203b74542'
-  abort: prune will orphan 1 descendants
+  abort: performing 'prune' in the middle of a stack will orphan 4c6f6f6d1976
   (see 'hg help evolution.instability')
   [255]
   $ hg prune '0ef9ff75f8e2::'