svnrdump: dump_editor: Allocate directory baton in per-revision pool
svnrdump: dump_editor: Allocate directory baton in per-revision pool

* subversion/svnrdump/dump_editor.c

  (open_root, add_directory, make_directory_baton): Pass `eb->pool` to
  `make_dir_baton` because directory batons should be allocated in the
  per-revision pool.

  (make_dir_baton): Don't explicitly use `eb->pool`- allocate
  everything in the pool that is passed as argument.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion