Fixed indentation of Python examples in C comments.

Objects/descrobject.c

@@ -1268,7 +1268,7 @@ PyWrapper_New(PyObject *d, PyObject *self)
 /* A built-in 'property' type */
 
 /*
-    class property(object):
+class property(object):
 
     def __init__(self, fget=None, fset=None, fdel=None, doc=None):
         if doc is None and fget is not None and hasattr(fget, "__doc__"):