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

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L3056: 	RTNLGRP_LINK          = 0x1

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