refactor: handle err with fprintln io reusable ifaces
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@ -11,14 +11,14 @@ package main
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import (
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"fmt"
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"io"
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"log"
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"os"
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)
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func main() {
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n, err := transfer()
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if err != nil {
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log.Fatal(err)
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fmt.Fprintln(os.Stderr, err)
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return
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}
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fmt.Printf("%d bytes transferred.\n", n)
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}
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