vendor: update all dependencies

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

@@ -72,7 +72,7 @@ var registries = []struct {
 	parse func(io.Writer, io.Reader) error
 }{
 	{
-		"http://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml",
+		"https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xml",
 		parseICMPv6Parameters,
 	},
 }
@@ -80,7 +80,7 @@ var registries = []struct {
 func geniana() error {
 	var bb bytes.Buffer
 	fmt.Fprintf(&bb, "// go generate gen.go\n")
-	fmt.Fprintf(&bb, "// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT\n\n")
+	fmt.Fprintf(&bb, "// Code generated by the command above; DO NOT EDIT.\n\n")
 	fmt.Fprintf(&bb, "package ipv6\n\n")
 	for _, r := range registries {
 		resp, err := http.Get(r.url)