Rename the callback parameters in the repository 'freeze' APIs to match the
style used elsewhere -- that is, *_func and *_baton.

* subversion/include/svn_fs.h,
  subversion/libsvn_fs/fs-loader.c
  (svn_fs_freeze): Rename the callback function and baton as above.

* subversion/include/svn_repos.h
  (svn_repos_freeze): Same.

* subversion/libsvn_repos/repos.c
  (freeze_baton_t, multi_freeze, svn_repos_freeze): Same.

* subversion/libsvn_fs_base/fs.c
  (base_bdb_freeze): Same.

* subversion/libsvn_fs_fs/fs.c
  (fs_freeze_baton_t, fs_freeze_body, fs_freeze): Same.

* subversion/libsvn_fs/fs-loader.h
  (fs_vtable_t): Same for the 'freeze' method.

* subversion/bindings/swig/include/svn_types.swg
  (typemap for svn_repos_freeze_func_t): Same.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1466936 13f79535-47bb-0310-9956-ffa450edef68