[api_results] respond even when checks are empty
[api_results] respond even when checks are empty

roobert/sensu,somic/sensu,keymone/sensu,bf4/sensu,sensu/sensu,rbramwell/sensu,crewton/sensu,miyakawataku/sensu,yonglehou/sensu,npe9/sensu,m4ce/sensu,portertech/sensu,withnale/sensu,cread/sensu,solarkennedy/sensu,upfluence/sensu