--- a/tests/test-prune.t	Wed Dec 04 21:06:39 2019 +0530
+++ b/tests/test-prune.t	Mon Dec 23 01:03:45 2019 +0530
@@ -92,7 +92,7 @@
 cannot prune public changesets
 
   $ hg prune 0
-  abort: cannot prune public changesets: 1f0dee641bb7
+  abort: cannot 'prune' public changesets: 1f0dee641bb7
   (see 'hg help phases' for details)
   [255]
   $ hg debugobsolete