* 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/glk.c

@@ -393,10 +393,10 @@ glk_flush(Driver *drvthis)
 // upper-left is (1,1), and the lower right should be (20,4).
 //
 MODULE_EXPORT void
-glk_string(Driver *drvthis, int x, int y, char string[])
+glk_string(Driver *drvthis, int x, int y, const char string[])
 {
 	PrivateData *p = drvthis->private_data;
-	char *s;
+	const char *s;
 
 	debug(RPT_DEBUG, "glk_string(%d, %d, \"%s\")", x, y, string);