Fix malformed generated file when using python 2.7

py/makeqstrdata.py

@@ -40,7 +40,7 @@ def do_work(infiles):
 
     # process the qstrs, printing out the generated C header file
     print('// This file was automatically generated by makeqstrdata.py')
-    print()
+    print('')
     for qstr in qstrs:
         qhash = compute_hash(qstr)
         qlen = len(qstr)