packfile: convert has_packed_and_bad() to object_id

The single caller has a full object ID, so pass it on instead of just
its hash member.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/packfile.h b/packfile.h
index a982ed9..1861467 100644
--- a/packfile.h
+++ b/packfile.h
@@ -160,7 +160,7 @@ int packed_object_info(struct repository *r,
 		       off_t offset, struct object_info *);
 
 void mark_bad_packed_object(struct packed_git *, const struct object_id *);
-const struct packed_git *has_packed_and_bad(struct repository *r, const unsigned char *sha1);
+const struct packed_git *has_packed_and_bad(struct repository *, const struct object_id *);
 
 #define ON_DISK_KEEP_PACKS 1
 #define IN_CORE_KEEP_PACKS 2