mercurial/configitems.py

--- a/mercurial/configitems.py	Fri Jun 30 03:44:01 2017 +0200
+++ b/mercurial/configitems.py	Fri Jun 30 03:44:02 2017 +0200
@@ -149,6 +149,9 @@
 coreconfigitem('progress', 'assume-tty',
     default=False,
 )
+coreconfigitem('progress', 'clear-complete',
+    default=True,
+)
 coreconfigitem('server', 'bundle1',
     default=True,
 )