const golang.org/x/sys/unix.IPV6_MULTICAST_HOPS

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L1564: 	IPV6_MULTICAST_HOPS                         = 0x12

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)