Add dummy show_flist_stats().

flist.c

@@ -95,6 +95,12 @@ static void finish_build_progress(const struct file_list *flist)
 }
 
 
+void show_flist_stats(void)
+{
+	/* Nothing yet */
+}
+
+
 static struct string_area *string_area_new(int size)
 {
 	struct string_area *a;

main.c

@@ -60,6 +60,7 @@ static void report(int f)
 	if (do_stats) {
 		/* These come out from every process */
 		show_malloc_stats();
+		show_flist_stats();
 	}
 
 	if (am_daemon) {