Mark and/or replace strcmp() with svn_path_strcmp().

* subversion/libsvn_wc/log.c
  (loggy_path): Mark spot where possibly we should use
    svn_path_strcmp().

* subversion/libsvn_wc/lock.c
  (svn_wc_adm_open_anchor,
   do_close): Mark spot where we possibly should
    use svn_path_strcmp().

* subversion/libsvn_wc/update_editor.c
  (complete_directory): Unroll if() statement in order to
   be able to use svn_path_strcmp().



git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/nfc-nfd-aware-client@870377 13f79535-47bb-0310-9956-ffa450edef68