Add a type.__init__() method that enforces the same signature as
type.__new__(), and then calls object.__init__(cls), just to be anal.

This allows us to restore the code in string.py's _TemplateMetaclass
that called super(...).__init__(name, bases, dct), which I commented
out yesterday since it broke due to the stricter argument checking
added to object.__init__().
diff --git a/Lib/string.py b/Lib/string.py
index d4d13b2..921bd8b 100644
--- a/Lib/string.py
+++ b/Lib/string.py
@@ -108,9 +108,7 @@
     """
 
     def __init__(cls, name, bases, dct):
-        # A super call makes no sense since type() doesn't define __init__().
-        # (Or does it? And should type.__init__() accept three args?)
-        # super(_TemplateMetaclass, cls).__init__(name, bases, dct)
+        super(_TemplateMetaclass, cls).__init__(name, bases, dct)
         if 'pattern' in dct:
             pattern = cls.pattern
         else: