configitems: update default value of 'phases.new-commit'

Now that mq is cleaned up, we can rely on the config register for the default
value. We switch the default from the integer to human readable value to help
with future automatic documentation that could be generated from the config
register.

mercurial/configitems.py

@@ -396,7 +396,7 b" coreconfigitem('phases', 'checksubrepos'"
     default='follow',
 )
 coreconfigitem('phases', 'new-commit',
-    default=dynamicdefault,
+    default='draft',
 )
 coreconfigitem('phases', 'publish',
     default=True,

mercurial/phases.py

@@ -619,7 +619,7 b' def newcommitphase(ui):'
     Handle all possible values for the phases.new-commit options.
 
     """
-    v = ui.config('phases', 'new-commit', draft)
+    v = ui.config('phases', 'new-commit')
     try:
         return phasenames.index(v)
     except ValueError: