PDEPD R1, R2, R3                        // 7c231138
	PEXTD R1, R2, R3                        // 7c231178
	PLBZ 1234(R1), $0, R3                   // 06000000886104d260000000
	// Note, PLD crosses a 64B boundary, and a nop is inserted between PLBZ and PLD
	PLD 1234(R1), $0, R3                    // 04000000e46104d2
	PLFD 1234(R1), $0, F3                   // 06000000c86104d2
	PLFS 1234567890(R4), $0, F3             // 06004996c06402d2

	if strings.Contains(f, "\n") {
		panic("feature contains newlines: " + f)
	}

	if _, dup := w.features[f]; dup {
		panic("duplicate feature inserted: " + f)
	}
	w.features[f] = true

	if verbose {
		log.Printf("feature: %s", f)
	}
}

func needApproval(filename string) bool {
	name := filepath.Base(filename)