fix xml writing

CringeLauncher/Patches/XmlRootWriterPatch.cs

@@ -0,0 +1,36 @@
+using System.Reflection.Emit;
+using System.Xml;
+using HarmonyLib;
+using VRage;
+
+namespace CringeLauncher.Patches;
+
+[HarmonyPatch(typeof(CustomRootWriter), "Init")]
+public class XmlRootWriterPatch
+{
+    private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
+    {
+        var ins = instructions.ToList();
+        
+        var index = ins.FindIndex(b =>
+                                      b.opcode == OpCodes.Ldstr && b.operand is "xsi:type");
+        ins[index].operand = "xsi";
+        
+        ins.InsertRange(index + 1, new[]
+        {
+            new CodeInstruction(OpCodes.Ldstr, "type"),
+            new CodeInstruction(OpCodes.Ldstr, "http://www.w3.org/2001/XMLSchema-instance")
+        });
+        
+        var instruction = ins[ins.FindIndex(b => b.opcode == OpCodes.Callvirt)];
+        instruction.operand = AccessTools.Method(typeof(XmlWriter), "WriteAttributeString", new[]
+        {
+            typeof(string),
+            typeof(string),
+            typeof(string),
+            typeof(string)
+        });
+        
+        return ins;
+    }
+}