work on floppy directory within CBDOS

src/dos_m65/assets/dos_parts_dir.s

@@ -9,7 +9,7 @@ dir_hdr:                     ; 32 bytes - header
 	!byte $01, $01           ; link to the next line - dummy, will be regenerated by BASIC
 	!byte $00, $00           ; line number 0
 	!byte $12, $22           ; reverse mode, quote
-	!pet "                "  ; space for disk/directory name     XXX should be space, or shift+space?
+	!pet "                "  ; space for disk/directory name
     !byte $22, $20           ; quote, space
 	!pet "   2a"             ; default ID, disk format
 	!byte $00                ; end of the line
@@ -20,7 +20,8 @@ dir_hdr_sd:                  ; 32 bytes - header
 	!byte $01, $01           ; link to the next line - dummy, will be regenerated by BASIC
 	!byte $00, $00           ; line number 0
 	!byte $12, $22           ; reverse mode, quote
-	!pet "sd card         "  ; space for disk/directory name    XXX should be space, or shift+space?
+	!pet "sd card"           ; space for disk/directory name
+	!byte $A0, $A0, $A0, $A0, $A0, $A0, $A0, $A0, $A0
     !byte $22, $20           ; quote, space
 	!pet "fat32"             ; filesystem
 	!byte $00                ; end of the line