Fix handling of `--osp:set-affinity=(0|1)` arg
Fix handling of `--osp:set-affinity=(0|1)` arg

wilsonCernWq/ospray,wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay,wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay