status: add a config knob for setting default of --terse I want --terse=u basically 100% of the time, but there's not a good way to do that before this patch. I'm very unhappy with how the default value for --terse looks rigt now, but it does *work*. The alternative would be to define an "optional string" flag type using fancyopts.customopt and then use that, leaving the default as None. Does anyone have a strong preference for that, or a better idea? Differential Revision: https://phab.mercurial-scm.org/D3627

--- a/mercurial/configitems.py	Sat May 19 16:50:30 2018 -0400
+++ b/mercurial/configitems.py	Mon May 14 22:01:27 2018 -0400
@@ -193,6 +193,9 @@
 coreconfigitem('commands', 'status.skipstates',
     default=[],
 )
+coreconfigitem('commands', 'status.terse',
+    default='',
+)
 coreconfigitem('commands', 'status.verbose',
     default=False,
 )