diff -r fc2baecdef1d -r f96c2f2f559b mercurial/configitems.py
--- a/mercurial/configitems.py	Sun Jul 02 23:10:33 2017 +0200
+++ b/mercurial/configitems.py	Fri Jun 30 03:42:42 2017 +0200
@@ -104,6 +104,9 @@
 coreconfigitem('devel', 'strip-obsmarkers',
     default=True,
 )
+coreconfigitem('hostsecurity', 'ciphers',
+    default=None,
+)
 coreconfigitem('patch', 'fuzz',
     default=2,
 )