make progress "title" part of the common progress interface

If the progress bar ends up in a box, better provide a title for it too.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/index-pack.c b/index-pack.c
index a49d03d..824004f 100644
--- a/index-pack.c
+++ b/index-pack.c
@@ -407,10 +407,8 @@
 	 * - calculate SHA1 of all non-delta objects;
 	 * - remember base (SHA1 or offset) for all deltas.
 	 */
-	if (verbose) {
-		fprintf(stderr, "Indexing %d objects.\n", nr_objects);
-		start_progress(&progress, "", nr_objects);
-	}
+	if (verbose)
+		start_progress(&progress, "Indexing %u objects...", "", nr_objects);
 	for (i = 0; i < nr_objects; i++) {
 		struct object_entry *obj = &objects[i];
 		data = unpack_raw_entry(obj, &delta->base);
@@ -458,10 +456,8 @@
 	 *   recursively checking if the resulting object is used as a base
 	 *   for some more deltas.
 	 */
-	if (verbose) {
-		fprintf(stderr, "Resolving %d deltas.\n", nr_deltas);
-		start_progress(&progress, "", nr_deltas);
-	}
+	if (verbose)
+		start_progress(&progress, "Resolving %u deltas...", "", nr_deltas);
 	for (i = 0; i < nr_objects; i++) {
 		struct object_entry *obj = &objects[i];
 		union delta_base base;