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Update ch4-04-grpc.md

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smallwhite 2019-03-07 11:40:50 +08:00 committed by GitHub
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ch4-rpc/ch4-04-grpc.md
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@ -386,7 +386,7 @@ func main() {
defer conn.Close()
client := NewPubsubServiceClient(conn)
stream, err := client.SubscribeTopic(
stream, err := client.Subscribe(
context.Background(), &String{Value: "golang:"},
)
if err != nil {