Fix list concatenation

Author: i30817

rhdndat/__main__.py

@@ -355,7 +355,7 @@ def renamer(romdir: Path = typer.Argument(..., exists=True, file_okay=False, dir
     if xmlpath.is_file():
         xmls = [xmlpath]
     elif xmlpath.is_dir():
-        xmls = list(xmlpath.glob('**/*.dat') + xmlpath.glob('**/*.xml'))
+        xmls = list(xmlpath.glob('**/*.dat')) + list(xmlpath.glob('**/*.xml'))
     if not xmls:
         error('Can\'t find xml dats in second argument')
         raise typer.Abort()