diff -r 1969adf2139a -r f15850eff735 mercurial/configitems.py
--- a/mercurial/configitems.py	Wed Jun 28 13:32:07 2017 +0200
+++ b/mercurial/configitems.py	Wed Jun 28 13:32:18 2017 +0200
@@ -74,6 +74,9 @@
 coreconfigitem('devel', 'servercafile',
     default='',
 )
+coreconfigitem('devel', 'serverexactprotocol',
+    default='',
+)
 coreconfigitem('patch', 'fuzz',
     default=2,
 )