* subversion/libsvn_client/externals.c
  (svn_client__handle_externals): Following up on r1600323, handle a few more
    possible error codes that note that we didn't find a directory to delete.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1600393 13f79535-47bb-0310-9956-ffa450edef68