vendor: Update golang.org/x/net/ipv6

vendor/golang.org/x/net/ipv6/zsys_darwin.go

@@ -71,19 +71,19 @@ const (
 	sysIPV6_PORTRANGE_HIGH    = 0x1
 	sysIPV6_PORTRANGE_LOW     = 0x2
 
-	sysSizeofSockaddrStorage = 0x80
-	sysSizeofSockaddrInet6   = 0x1c
-	sysSizeofInet6Pktinfo    = 0x14
-	sysSizeofIPv6Mtuinfo     = 0x20
+	sizeofSockaddrStorage = 0x80
+	sizeofSockaddrInet6   = 0x1c
+	sizeofInet6Pktinfo    = 0x14
+	sizeofIPv6Mtuinfo     = 0x20
 
-	sysSizeofIPv6Mreq       = 0x14
-	sysSizeofGroupReq       = 0x84
-	sysSizeofGroupSourceReq = 0x104
+	sizeofIPv6Mreq       = 0x14
+	sizeofGroupReq       = 0x84
+	sizeofGroupSourceReq = 0x104
 
-	sysSizeofICMPv6Filter = 0x20
+	sizeofICMPv6Filter = 0x20
 )
 
-type sysSockaddrStorage struct {
+type sockaddrStorage struct {
 	Len         uint8
 	Family      uint8
 	X__ss_pad1  [6]int8
@@ -91,7 +91,7 @@ type sysSockaddrStorage struct {
 	X__ss_pad2  [112]int8
 }
 
-type sysSockaddrInet6 struct {
+type sockaddrInet6 struct {
 	Len      uint8
 	Family   uint8
 	Port     uint16
@@ -100,31 +100,31 @@ type sysSockaddrInet6 struct {
 	Scope_id uint32
 }
 
-type sysInet6Pktinfo struct {
+type inet6Pktinfo struct {
 	Addr    [16]byte /* in6_addr */
 	Ifindex uint32
 }
 
-type sysIPv6Mtuinfo struct {
-	Addr sysSockaddrInet6
+type ipv6Mtuinfo struct {
+	Addr sockaddrInet6
 	Mtu  uint32
 }
 
-type sysIPv6Mreq struct {
+type ipv6Mreq struct {
 	Multiaddr [16]byte /* in6_addr */
 	Interface uint32
 }
 
-type sysICMPv6Filter struct {
+type icmpv6Filter struct {
 	Filt [8]uint32
 }
 
-type sysGroupReq struct {
+type groupReq struct {
 	Interface uint32
 	Pad_cgo_0 [128]byte
 }
 
-type sysGroupSourceReq struct {
+type groupSourceReq struct {
 	Interface uint32
 	Pad_cgo_0 [128]byte
 	Pad_cgo_1 [128]byte