config: Change client URLs on etcd masters
config: Change client URLs on etcd masters

This patch updates the client urls on the etcd masters from 0.0.0.0/32 to
to the node's local IP. This more closely resembles the configuration
suggested by the etcd docs.

ejj/quilt-dev,PenguinToast/quilt,ZhongtianWang/quilt,NetSys/quilt,mmussomele/quilt,kklin/kelda,kayousterhout/quilt,secant/quilt,tejasmanohar/quilt,mmussomele/quilt,stevenlin598/quilt,LuiseV/quilt,kelda/kelda,stevenlin598/quilt,quilt/quilt,tejasmanohar/quilt,kklin/kelda,ejj/quilt-dev,kklin/quilt,ZhongtianWang/quilt,NetSys/quilt,ejj/quilt-dev,kklin/kelda,mmussomele/quilt,PenguinToast/quilt,akshayknarayan/quilt,secant/quilt,mmussomele/quilt,stevenlin598/quilt,LuiseV/quilt,quilt/quilt,quilt/quilt,kklin/quilt,kklin/quilt,ZhongtianWang/quilt,LuiseV/quilt,stevenlin598/quilt,tejasmanohar/quilt,akshayknarayan/quilt,ejj/quilt-dev,NetSys/quilt,stevenlin598/quilt,kklin/quilt,NetSys/quilt,kelda/kelda,kayousterhout/quilt,LuiseV/quilt,PenguinToast/quilt,PenguinToast/quilt,LuiseV/quilt,akshayknarayan/quilt,stevenlin598/quilt,quilt/quilt,NetSys/quilt,mmussomele/quilt,secant/quilt,secant/quilt,kelda/kelda,kayousterhout/quilt,PenguinToast/quilt,kklin/kelda,mmussomele/quilt,akshayknarayan/quilt,secant/quilt,tejasmanohar/quilt,kelda/kelda,kayousterhout/quilt,ZhongtianWang/quilt