when writing output file, dont recurse

cmd/pttodo-cli/cli.go

@@ -168,5 +168,9 @@ func dump(dry bool, writer io.Writer, filepath string) error {
 		return nil
 	}
 
-	return os.WriteFile(filepath, b2, os.ModePerm)
+	b3, err := yaml.Marshal(root)
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(filepath, b3, os.ModePerm)
 }