config: use "churn" as an example extension
"Churn" is not the useful example we have, but this is the one used in
'hg help config.extensions'. As we need something to replace the deprecated
'pager' extension in the example config, we are adding 'churn'.
--- a/mercurial/ui.py Wed Apr 19 23:10:05 2017 +0900
+++ b/mercurial/ui.py Mon May 01 15:51:47 2017 +0200
@@ -59,6 +59,7 @@
# uncomment these lines to enable some popular extensions
# (see 'hg help extensions' for more info)
#
+# churn =
# pager =""",
'cloned':
@@ -107,6 +108,7 @@
# (see 'hg help extensions' for more info)
#
# blackbox =
+# churn =
# pager =""",
}