On the log-addressing branch:  Fix the hotcopy for f7 repos.

* subversion/libsvn_fs_fs/fs_fs.c
  (svn_fs_fs__open): actually use the min_log_addressing_rev value
                     read from the format file
* subversion/libsvn_fs_fs/hotcopy.c
  (hotcopy_create_empty_dest): copy min_log_addressing_rev as well

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/log-addressing@1509732 13f79535-47bb-0310-9956-ffa450edef68