On the fsfs-format7 branch: Make access log feature work again.

* subversion/libsvn_fs_fs/cached_data.c
  (dgb__log_access): show sub-item for data in containers as well

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1481431 13f79535-47bb-0310-9956-ffa450edef68