References: golang.org/x/sys/unix.SCM_TSTAMP

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

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L2450: 	SCM_TSTAMP_SND   = 0x0

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