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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L2184: 	NFNL_SUBSYS_IPSET                           = 0x6

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)