diff -r a50482254b0a -r 35b3f686157a hgext/rebase.py
--- a/hgext/rebase.py	Thu Jul 12 22:23:51 2018 +0530
+++ b/hgext/rebase.py	Thu Jul 12 22:35:54 2018 +0530
@@ -854,7 +854,7 @@
     rbsrt = rebaseruntime(repo, ui, inmemory=True, opts=opts)
     confirm = opts.get('confirm')
     if confirm:
-        ui.status(_('starting rebase...\n'))
+        ui.status(_('starting in-memory rebase\n'))
     else:
         ui.status(_('starting dry-run rebase; repository will not be '
                     'changed\n'))