Unary 'not' is now less likely to be split after
Unary 'not' is now less likely to be split after

Closes #89

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