formatter: make debug output prettier

"(glob)" won't be needed since pprintgen() can print dict items in stable
order.

mercurial/formatter.py

@@ -324,7 +324,8 class debugformatter(baseformatter):
         self._out = out
         self._out.write("%s = [\n" % self._topic)
     def _showitem(self):
-        self._out.write('    %s,\n' % stringutil.pprint(self._item))
+        self._out.write('    %s,\n'
+                        % stringutil.pprint(self._item, indent=4, level=1))
     def end(self):
         baseformatter.end(self)
         self._out.write("]\n")

tests/test-status.t

@@ -528,7 +528,10 warning message about such pattern.
 
   $ hg status --config ui.formatdebug=True --rev 1 1
   status = [
-      {*'path': '1/2/3/4/5/b.txt'*}, (glob)
+      {
+          'path': '1/2/3/4/5/b.txt',
+          'status': 'R'
+      },
   ]
 
 #if windows