Add sleep to be more sure etcd is started
Add sleep to be more sure etcd is started

nicescale/skydns,yonglehou/skydns,ZeaLoVe/skydns,tonicbupt/skydns,skynetservices/skydns,vinhhrv/skydns,AdoHe/skydns,hw-qiaolei/skydns,netf/skydns,zhang0137/skydns,tuannvm/skydns,weekface/skydns,andrewrothstein/skydns,loveshell/skydns,no2key/skydns