* http-push.c:                            16-----19
  * commit.c:                               16-----19
  * sha1_name.c:                                     20
+ * builtin/fsck.c:  0--3
  */
 #define FLAG_BITS  27
 
  */
 struct object {
        unsigned parsed : 1;
-       unsigned used : 1;
        unsigned type : TYPE_BITS;
        unsigned flags : FLAG_BITS;
        struct object_id oid;