wt-status: simplify by using for_each_string_list_item

Improve readability by using the for_each_string_list_item helper
instead of manually iterating with an integer counter.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

wt-status.c

@@ -1785,35 +1785,25 @@ static void wt_shortstatus_print_tracking(struct wt_status *s)
 
 static void wt_shortstatus_print(struct wt_status *s)
 {
-	int i;
+	struct string_list_item *it;
 
 	if (s->show_branch)
 		wt_shortstatus_print_tracking(s);
 
-	for (i = 0; i < s->change.nr; i++) {
-		struct wt_status_change_data *d;
-		struct string_list_item *it;
+	for_each_string_list_item(it, &s->change) {
+		struct wt_status_change_data *d = it->util;
 
-		it = &(s->change.items[i]);
-		d = it->util;
 		if (d->stagemask)
 			wt_shortstatus_unmerged(it, s);
 		else
 			wt_shortstatus_status(it, s);
 	}
-	for (i = 0; i < s->untracked.nr; i++) {
-		struct string_list_item *it;
-
-		it = &(s->untracked.items[i]);
+	for_each_string_list_item(it, &s->untracked)
 		wt_shortstatus_other(it, s, "??");
-	}
-	for (i = 0; i < s->ignored.nr; i++) {
-		struct string_list_item *it;
 
-		it = &(s->ignored.items[i]);
+	for_each_string_list_item(it, &s->ignored)
 		wt_shortstatus_other(it, s, "!!");
 }
-}
 
 static void wt_porcelain_print(struct wt_status *s)
 {