hswg: use a buffered channel for signals
Found by go vet.
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@ -494,7 +494,7 @@ func main() {
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log.Fatalln(err)
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}
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signals := make(chan os.Signal)
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signals := make(chan os.Signal, 1)
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signal.Notify(signals, syscall.SIGINT, syscall.SIGHUP, syscall.SIGTERM)
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for {
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select {
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