bisect: use oid_to_hex() for converting object_id hashes to hex strings

Patch generated with Coccinelle and contrib/coccinelle/object_id.cocci.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bisect.c

@@ -143,10 +143,10 @@ static void show_list(const char *debug, int counted, int nr,
 			fprintf(stderr, "%3d", weight(p));
 		else
 			fprintf(stderr, "---");
-		fprintf(stderr, " %.*s", 8, sha1_to_hex(commit->object.oid.hash));
+		fprintf(stderr, " %.*s", 8, oid_to_hex(&commit->object.oid));
 		for (pp = commit->parents; pp; pp = pp->next)
 			fprintf(stderr, " %.*s", 8,
-				sha1_to_hex(pp->item->object.oid.hash));
+				oid_to_hex(&pp->item->object.oid));
 
 		subject_len = find_commit_subject(buf, &subject_start);
 		if (subject_len)