* coding style harmonization in servers/

- explicitely declare void arguments
  - make a few string args const
* better support for shorter displays in server screen
* make target to create top level tag file

server/drivers/debug.c

@@ -137,7 +137,7 @@ debug_flush (Driver *drvthis)
 // upper-left is (1,1), and the lower right should be (20,4).
 //
 MODULE_EXPORT void
-debug_string (Driver *drvthis, int x, int y, char string[])
+debug_string (Driver *drvthis, int x, int y, const char string[])
 {
 	int i;