Update dependencies

vendor/github.com/tailscale/netlink/neigh.go

@@ -0,0 +1,33 @@
+package netlink
+
+import (
+	"fmt"
+	"net"
+)
+
+// Neigh represents a link layer neighbor from netlink.
+type Neigh struct {
+	LinkIndex    int
+	Family       int
+	State        int
+	Type         int
+	Flags        int
+	FlagsExt     int
+	IP           net.IP
+	HardwareAddr net.HardwareAddr
+	LLIPAddr     net.IP //Used in the case of NHRP
+	Vlan         int
+	VNI          int
+	MasterIndex  int
+}
+
+// String returns $ip/$hwaddr $label
+func (neigh *Neigh) String() string {
+	return fmt.Sprintf("%s %s", neigh.IP, neigh.HardwareAddr)
+}
+
+// NeighUpdate is sent when a neighbor changes - type is RTM_NEWNEIGH or RTM_DELNEIGH.
+type NeighUpdate struct {
+	Type uint16
+	Neigh
+}