hgext/histedit.py

--- a/hgext/histedit.py	Tue Jun 02 15:04:39 2015 -0400
+++ b/hgext/histedit.py	Mon Jun 01 18:05:38 2015 +0000
@@ -928,7 +928,7 @@
             raise util.Abort(_('cannot edit history that contains merges'))
         root = ctxs[0] # list is already sorted by repo.set
         if not root.mutable():
-            raise util.Abort(_('cannot edit immutable changeset: %s') % root)
+            raise util.Abort(_('cannot edit public changeset: %s') % root)
     return [c.node() for c in ctxs]
 
 def makedesc(repo, action, rev):