[redis-version] use ruby string magic
[redis-version] use ruby string magic

rbramwell/sensu,keymone/sensu,portertech/sensu,withnale/sensu,crewton/sensu,miyakawataku/sensu,yonglehou/sensu,quodlibetor/sensu,pauloconnor/sensu,bf4/sensu,npe9/sensu,javrasya/sensu,sensu/sensu,roobert/sensu,solarkennedy/sensu,upfluence/sensu,somic/sensu,zuazo-forks/sensu,cread/sensu,Tapjoy/sensu-mirror,m4ce/sensu