Make ssh sockets close on exit

agent/ssh/sshsocketunix.go

@@ -22,6 +22,7 @@ func (v SSHAgentServer) Serve() {
 	if err != nil {
 		panic(err)
 	}
+	defer listener.Close()
 
 	log.Info("SSH Agent listening on %s", path)
 

agent/unixsocketagent.go

@@ -294,6 +294,7 @@ func StartUnixAgent(path string, runtimeConfig config.RuntimeConfig) error {
 		println("listen error", err.Error())
 		return err
 	}
+	defer l.Close()
 	log.Info("Agent listening on %s...", path)
 
 	go func() {