doc/docchecker

--- a/doc/docchecker	Fri May 13 02:40:39 2016 +0530
+++ b/doc/docchecker	Fri May 13 02:41:35 2016 +0530
@@ -7,7 +7,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-from __future__ import absolute_import
+from __future__ import absolute_import, print_function
 
 import re
 import sys