fix(*): don't sleep on first attempt, close after every iteration
fix(*): don't sleep on first attempt, close after every iteration

giantswarm/go-etcd,shafreeck/go-etcd,coreos/go-etcd,kmchen/go-etcd,Yhgenomics/go-etcd,barakmich/go-etcd,pengzj/go-etcd,nordligulv/go-etcd,pquerna/go-etcd,mischief/go-etcd,mbrukman/go-etcd,wangyumi/go-etcd,stormltf/go-etcd