Don't produce output in test_builtin.

Lib/test/test_builtin.py

@@ -1432,12 +1432,12 @@ class BuiltinTest(unittest.TestCase):
             self.assertEqual(input('testing\n'), 2)
             self.assertEqual(raw_input(), 'The quick brown fox jumps over the lazy dog.')
             self.assertEqual(raw_input('testing\n'), 'Dear John')
-            
+ 
             # SF 1535165: don't segfault on closed stdin
             # sys.stdout must be a regular file for triggering
             sys.stdout = savestdout
             sys.stdin.close()
-            self.assertRaises(ValueError, input, 'prompt')
+            self.assertRaises(ValueError, input)
 
             sys.stdout = BitBucket()
             sys.stdin = cStringIO.StringIO("NULL\0")