- abbrev1 = xstrdup(find_unique_abbrev(oid1->hash, DEFAULT_ABBREV));
- abbrev2 = xstrdup(find_unique_abbrev(oid2->hash, DEFAULT_ABBREV));
+ abbrev1 = xstrdup(find_unique_abbrev(oid1, DEFAULT_ABBREV));
+ abbrev2 = xstrdup(find_unique_abbrev(oid2, DEFAULT_ABBREV));