const os.DevNull

3 uses

	os (current package)
		file_unix.go#L201: const DevNull = "/dev/null"

	os/exec
		exec.go#L246: 		f, err = os.Open(os.DevNull)
		exec.go#L291: 		f, err = os.OpenFile(os.DevNull, os.O_WRONLY, 0)

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