Fix checking for EFI_INVALID_PARAMETER

src/hel/hel.d

@@ -139,7 +139,7 @@ extern (C) EFI_STATUS efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE * st)
         get_memory_map();
 
         EFI_STATUS status = st.BootServices.ExitBootServices(image_handle, memory_map_key);
-        if ((status & 0xFFu) == (EFI_INVALID_PARAMETER & 0xFFu))
+        if (status == EFI_INVALID_PARAMETER)
         {
             continue;
         }