agent: Provide log info about encryption. Fixes #151.

command/agent/command.go

@@ -326,6 +326,8 @@ func (c *Command) Run(args []string) int {
 		config.Ports.HTTP, config.Ports.DNS, config.Ports.RPC))
 	c.Ui.Info(fmt.Sprintf("  Cluster Addr: %v (LAN: %d, WAN: %d)", config.AdvertiseAddr,
 		config.Ports.SerfLan, config.Ports.SerfWan))
+	c.Ui.Info(fmt.Sprintf("Gossip encrypt: %v, RPC-TLS: %v, TLS-Incoming: %v",
+		config.EncryptKey != "", config.VerifyOutgoing, config.VerifyIncoming))
 
 	// Enable log streaming
 	c.Ui.Info("")