multimsg.go

// format: [dest: msg, dest2: msg2]
acc := make(map[string][]string, len(args.recipients))
for _, r := range args.recipients {
	remote := dealers[r]
	remote.SendMessage(args.msg)
}
for _, r := range args.recipients {
	remote := dealers[r]
	msg, err := remote.RecvMessage(0)
	if err == nil {
		acc[r] = msg
	}
}
*args.res <- acc