fix check_tsd -c/-w options logic
fix check_tsd -c/-w options logic

it should fail only if both are None, not the other way around

Signed-off-by: Benoit Sigoure <d0ba46810740e35622837d76cd77ceb8c4bf46f5@gmail.com>

alienth/opentsdb,ShefronYudy/opentsdb,eswdd/opentsdb,MadDogTechnology/opentsdb,andyflury/opentsdb,johann8384/opentsdb,MadDogTechnology/opentsdb,eswdd/opentsdb,johann8384/opentsdb,MadDogTechnology/opentsdb,OpenTSDB/opentsdb,andyflury/opentsdb,alienth/opentsdb,OpenTSDB/opentsdb,OpenTSDB/opentsdb,ShefronYudy/opentsdb