Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/ServerStatus_motdMixin.java

@@ -0,0 +1,24 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import net.minecraft.network.protocol.status.ServerStatus;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(ServerStatus.class)
+public class ServerStatus_motdMixin
+{
+    @Inject(method = "getDescription", at = @At("HEAD"), cancellable = true)
+    private void getDescriptionAlternative(CallbackInfoReturnable<Component> cir)
+    {
+        if (!CarpetSettings.customMOTD.equals("_"))
+        {
+            cir.setReturnValue(new TextComponent(CarpetSettings.customMOTD));
+            cir.cancel();
+        }
+    }
+}