Correct typo and inconsistency detected by Hernan M. Foffani.

pep-0252.txt

@@ -388,8 +388,8 @@ Static methods and class methods
 
       class C:
 
-          def foo(x, y):
-              print "classmethod", x, y
+          def foo(cls, y):
+              print "classmethod", cls, y
           foo = classmethod(foo)
 
       C.foo(1)
@@ -417,9 +417,10 @@ Static methods and class methods
     But notice this:
 
       class E(C):
-          def foo(x, y): # override C.foo
+          def foo(cls, y): # override C.foo
               print "E.foo() called"
               C.foo(y)
+          foo = classmethod(foo)
 
       E.foo(1)
       e = E()