[gxml] Unit Test: XElement fix segfault

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 1f77f26acdd13c87427e6ffdce4e5f2a9a089e4a
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Mar 17 13:52:46 2021 -0600

    Unit Test: XElement fix segfault

 test/XElementTest.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/test/XElementTest.vala b/test/XElementTest.vala
index 383205e3..c23ea170 100644
--- a/test/XElementTest.vala
+++ b/test/XElementTest.vala
@@ -24,6 +24,7 @@ using GXml;
 
 class XElementTest : GLib.Object  {
        public static int main (string[] args) {
+               Test.init (ref args);
                Test.add_func ("/gxml/gelement/to_string", () =>{
                        try {
                                DomDocument doc = new XDocument.from_string ("<root />");