Fix a bunch of doctests with the -d option of refactor.py.
We still have 27 failing tests (down from 39).
diff --git a/Lib/test/test_urllib2.py b/Lib/test/test_urllib2.py
index be7d0c8..0ea606f 100644
--- a/Lib/test/test_urllib2.py
+++ b/Lib/test/test_urllib2.py
@@ -101,7 +101,7 @@
 
     >>> r.has_header("Not-there")
     False
-    >>> print r.get_header("Not-there")
+    >>> print(r.get_header("Not-there"))
     None
     >>> r.get_header("Not-there", "default")
     'default'