Fix a comment on TestNode in engine.cljc
Fix a comment on TestNode in engine.cljc

WilliamParker/clara-rules,mrrodriguez/clara-rules,WilliamParker/clara-rules,cerner/clara-rules,cerner/clara-rules,cerner/clara-rules,mrrodriguez/clara-rules,mrrodriguez/clara-rules,WilliamParker/clara-rules