mkosi: provide default xbootldr_partno in argument parsing

Fixes #333

diff --git a/mkosi b/mkosi
index 7551d02272865b8edd4d7e2d399e7bbe18c99462..22ab7f7df28117d725d0393d08b19212724a6617 100755 (executable)
--- a/mkosi
+++ b/mkosi
@@ -91,6 +91,7 @@ class CommandLineArguments(argparse.Namespace):
 
     swap_partno: Optional[int] = None
     esp_partno: Optional[int] = None
+    xbootldr_partno: Optional[int] = None
 
 
 class SourceFileTransfer(enum.Enum):