const crypto/sha1.marshaledSize

3 uses

	crypto/sha1 (current package)
		sha1.go#L49: 	marshaledSize = len(magic) + 5*4 + chunk + 8
		sha1.go#L53: 	return d.AppendBinary(make([]byte, 0, marshaledSize))
		sha1.go#L73: 	if len(b) != marshaledSize {