Updates to a number of apps to remove warnings/compile errors under libc5.

Tested under both libc5 and libc6 and all seems well with these fixes.
 -Erik

console-tools/clear.c

@@ -29,5 +29,5 @@
 extern int clear_main(int argc, char **argv)
 {
 	printf("\033[H\033[J");
-	exit(TRUE);
+	return(TRUE);
 }