Fix Doxygen mark-up.

* subversion/include/svn_client.h
  (svn_client_ctx_t): s/@Since/@since/.
  (svn_client_cleanup): Mark the doc string as a Doxygen comment.

* subversion/include/svn_compat.h
  (svn_compat_log_revprops_out): Correct a cross-reference.

* subversion/include/svn_config.h
  (cached_authentication_data_attributes): Give this Doxygen group a title.

* subversion/include/svn_fs.h
  (svn_fs_lock_target_t,
   svn_fs_lock_result_t): Mark the doc strings as Doxygen comments.
  (svn_fs_lock2): Correct a <tt> closing tag to </tt>.
  (svn_fs_lock): Mark the doc string as a Doxygen comment.
  (svn_fs_unlock2): Correct cross-references. s/pool/scratch_pool/.

* subversion/include/svn_mergeinfo.h
  (SVN_MERGEINFO_NONINHERITABLE_STR): Mark the doc string as a Doxygen
    comment.
  (svn_rangelist_t, svn_mergeinfo_t, svn_mergeinfo_catalog_t): Give each of
    these types its own Doxygen doc string.

* subversion/include/svn_path.h
  (svn_path_illegal_path_escape): Mark the doc string as a Doxygen comment.

* subversion/include/svn_ra.h
  (svn_ra_get_file_revs2): s/@handler/@a handler/g.

* subversion/include/svn_repos.h
  (svn_repos_get_logs4): Correct a cross-reference.
  (svn_repos_get_file_revs2): s/@handler/@a handler/g.

* subversion/include/svn_types.h
  (svn_move_behavior_t): Mark each member's doc string as a Doxygen comment.

* subversion/include/svn_wc.h
  (svn_wc_conflict_description3_t): Mark a member's doc string as a Doxygen
    comment.
  (svn_wc_conflict_description_create_text2,
   svn_wc_conflict_description_create_prop2,
   svn_wc_conflict_description_create_tree2): Mark the doc string as a
    Doxygen comment, and use () notation for a function cross-reference.
  (svn_wc_conflict_resolver_func2_t): Mark the doc string as a Doxygen
    comment.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1581825 13f79535-47bb-0310-9956-ffa450edef68
* subversion/svnrdump/svnrdump.c
  (svnrdump__options."skip-revprops"): Improve help string.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1581826 13f79535-47bb-0310-9956-ffa450edef68