const crypto/md5.marshaledSize

3 uses

	crypto/md5 (current package)
		md5.go#L57: 	marshaledSize = len(magic) + 4*4 + BlockSize + 8
		md5.go#L61: 	return d.AppendBinary(make([]byte, 0, marshaledSize))
		md5.go#L80: 	if len(b) != marshaledSize {