const hash/crc32.magic

6 uses

	hash/crc32 (current package)
		crc32.go#L167: 	magic         = "crc\x01"
		crc32.go#L168: 	marshaledSize = len(magic) + 4 + 4
		crc32.go#L172: 	b = append(b, magic...)
		crc32.go#L184: 	if len(b) < len(magic) || string(b[:len(magic)]) != magic {