add -p -t -D flags to cluster settings ls (#10)

pkg/es/cluster.go

@@ -147,7 +147,16 @@ func ClusterSettingsList(conf *cfg.Config) error {
 	table.Addheaders("setting", "value")
 	entries := [][]string{}
 
-	for topic, val := range res.Persistent {
+	settingshash := res.Persistent // == map[string]json.RawMessage
+
+	switch {
+	case conf.Transient:
+		settingshash = res.Transient
+	case conf.Default:
+		settingshash = res.Defaults
+	}
+
+	for topic, val := range settingshash {
 		data := map[string]map[string]any{}
 
 		err := json.Unmarshal(val, &data)