return the prune-packed progress display to the inner loop

This reverts commit 0e54913796 so to return
to the same state as commit b5d72f0a4c.

On Wed, 31 Oct 2007, Shawn O. Pearce wrote:
> During my testing with a 40,000 loose object case (yea, I fully
> unpacked a git.git clone I had laying around) my system stalled
> hard in the first object directory.  A *lot* longer than 1 second.
> So I got no progress meter for a long time, and then a progress
> meter appeared on the second directory.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin-prune-packed.c

@@ -15,8 +15,6 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
 	struct dirent *de;
 	char hex[40];
 
-	display_progress(progress, i + 1);
-
 	sprintf(hex, "%02x", i);
 	while ((de = readdir(dir)) != NULL) {
 		unsigned char sha1[20];
@@ -32,6 +30,7 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
 			printf("rm -f %s\n", pathname);
 		else if (unlink(pathname) < 0)
 			error("unable to unlink %s", pathname);
+		display_progress(progress, i + 1);
 	}
 	pathname[len] = 0;
 	rmdir(pathname);