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f, _ := os.OpenFile("/home/fmt.log", os.O_WRONLY|os.O_CREATE|os.O_SYNC|os.O_APPEND,0755)
os.Stdout = f
os.Stderr = f
f, _ := os.OpenFile("/home/fmt.log", os.O_WRONLY|os.O_CREATE|os.O_SYNC|os.O_APPEND,0755)
os.Stdout = f
os.Stderr = f