pkg/relabel/relabel.go
func sum64(hash [md5.Size]byte) uint64 {
	var s uint64

	for i, b := range hash {
		shift := uint64((md5.Size - i - 1) * 8)

		s |= uint64(b) << shift
	}
	return s
}
func sum64(hash [md5.Size]byte) uint64 {
	var s uint64

	for i, b := range hash {
		shift := uint64((md5.Size - i - 1) * 8)

		s |= uint64(b) << shift
	}
	return s
}
// sum64 sums the md5 hash to an uint64.