samplehgrcs: update the list of suggested extensions
Back in the day, this was color and pager, both of which are now
default. Churn isn't that popular, but the other four below
(obviously?) are.
--- a/mercurial/ui.py Fri Mar 22 12:28:59 2019 -0400
+++ b/mercurial/ui.py Fri Mar 22 12:30:05 2019 -0400
@@ -100,7 +100,10 @@
# uncomment the lines below to enable some popular extensions
# (see 'hg help extensions' for more info)
#
-# churn =
+# histedit =
+# rebase =
+# shelve =
+# uncommit =
""",
'cloned':