References: golang.org/x/sys/unix.TCPInfo.Last_ack

golang.org/x/sys/unix.TCPInfo.Last_ack_sent (field)

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L483: 	Last_ack_sent        uint32

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