Converted to the new debug interface, using script written by Patrik
Stridvall.

diff --git a/msdos/int20.c b/msdos/int20.c
index 1ad5b42..a818acf 100644
--- a/msdos/int20.c
+++ b/msdos/int20.c
@@ -6,7 +6,7 @@
 #include "winbase.h"
 #include "miscemu.h"
 /* #define DEBUG_INT */
-#include "debug.h"
+#include "debugtools.h"
 #include "task.h"
 
 /**********************************************************************