fix Init arg

liuxiaolong

2021-05-31 a371b5f962bdac6c27155579237eb8ac870e23ce

 searcher.go

@@ -78,6 +78,7 @@
}

func CreateSearchNode(key string) (*memberlist.Memberlist, error) {
   members = make(map[string]NodeInfo,0)
   conf := memberlist.DefaultLocalConfig()
   conf.Events = &eventDelegate{}
   conf.Delegate = &delegate{}