On the fsfs-format7 branch: don't use APR_*_FMT macros inside _()

* subversion/libsvn_fs_fs/fs_fs.c
  (compare_l2p_to_p2l_index,
   compare_p2l_to_l2p_index): convert apr_off_t to string before formatting;
                              convert (u)i64 to long where appropriate

* subversion/libsvn_fs_fs/index.c
  (get_p2l_keys): ditto

Found by: danielsh

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1478528 13f79535-47bb-0310-9956-ffa450edef68