Update dependency mattn/go-xmlrpc (#1091)

Signed-off-by: Fabian Heymann <fabian.heymann@finanzcheck.de>

vendor/github.com/mattn/go-xmlrpc/xmlrpc.go

@@ -163,13 +163,17 @@ func next(p *xml.Decoder) (xml.Name, interface{}, error) {
 	case "array":
 		var ar Array
 		nextStart(p) // data
+		nextStart(p) // top of value
 		for {
-			nextStart(p) // top of value
 			_, value, e := next(p)
 			if e != nil {
 				break
 			}
 			ar = append(ar, value)
+
+			if reflect.ValueOf(value).Kind() != reflect.Map {
+				nextStart(p)
+			}
 		}
 		return xml.Name{}, ar, nil
 	case "nil":

vendor/vendor.json

@@ -71,10 +71,10 @@
 			"revisionTime": "2017-06-05T15:08:45Z"
 		},
 		{
-			"checksumSHA1": "8uAFFK5p8F39X1MOLsHrgTI0hzw=",
+			"checksumSHA1": "bCmcSbBoZf/rekSo8AE7l0fNCkw=",
 			"path": "github.com/mattn/go-xmlrpc",
-			"revision": "b7a1b57d9142f44a3a8f5a80aadf8d2d6ea2ca22",
+			"revision": "6e944673e4c0cc6117326f69df5eb7b210a6362d",
-			"revisionTime": "2018-04-20T00:08:13Z"
+			"revisionTime": "2018-09-13T19:02:54Z"
 		},
 		{
 			"checksumSHA1": "aodj/cITRyuaZSh84DDhrZjh76U=",