* subversion/svn/svn.c
  (sub_main): Be kind to people who try 'svn undo' and point them towards
   trying 'svn revert' or 'svn merge' instead.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1449795 13f79535-47bb-0310-9956-ffa450edef68