func (fs FS) NetUDP() (NetUDP, error) {
	return newNetUDP(fs.proc.Path("net/udp"))
}
NetUDP returns the IPv4 kernel/networking statistics for UDP datagrams
read from /proc/net/udp.
package procfs
import (
	"bufio"
	"encoding/hex"
	"fmt"
	"io"
	"net"
	"os"
	"strconv"
	"strings"
)
const (
	readLimit = 4294967296  
)
type (
	NetUDP []*netUDPLine
	NetUDPSummary struct {
		TxQueueLength uint64
		RxQueueLength uint64
		UsedSockets uint64
	}
	netUDPLine struct {
		Sl        uint64
		LocalAddr net.IP
		LocalPort uint64
		RemAddr   net.IP
		RemPort   uint64
		St        uint64
		TxQueue   uint64
		RxQueue   uint64
		UID       uint64
	}
)