fixed code to look for release root
fixed code to look for release root

jianqiu/bosh-softlayer-cpi-release,jianqiu/bosh-softlayer-cpi-release,maximilien/bosh-softlayer-cpi-release,jianqiu/bosh-softlayer-cpi-release,maximilien/bosh-softlayer-cpi-release,maximilien/bosh-softlayer-cpi-release