On the log-addressing branch:
Replace magic numbers with recently introduced variable.

* subversion/libsvn_fs_fs/cached_data.c
  (auto_select_stream): use SVN__LINE_CHUNK_SIZE

* subversion/libsvn_fs_fs/pack.c
  (store_items): ditto

Suggested by: philip

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/log-addressing@1533543 13f79535-47bb-0310-9956-ffa450edef68