func compress/flate.hash4u

4 uses

	compress/flate (current package)
		deflate.go#L331: 	return hash4u(loadLE32(b, 0), hashBits)
		deflate.go#L336: func hash4u(u uint32, h uint8) uint32 {
		deflate.go#L347: 	dst[0] = hash4u(hb, hashBits)
		deflate.go#L351: 		dst[i] = hash4u(hb, hashBits)