Fix testing errors on Python 3.4
Fix testing errors on Python 3.4

The SPLIT_PENALTY annotation must be numeric! Python 3 disallows comparing None
with integers.

ambv/yapf,sbc100/yapf,google/yapf,wklken/yapf,hayd/yapf,google/yapf,elviswf/yapf,dmoliveira/yapf,nikolamilosevic86/yapf,lucius-feng/yapf,thurday/yapf,jamesblunt/yapf,sbc100/yapf,bygloam/yapf,abduld/yapf