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

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L2982: 	RTNH_F_ONLINK                               = 0x4

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