* CHANGES: List the new '--drop-all-empty-revs' option to
  'svndumpfilter include/exclude' (issue #3681).

Patch by: Vijayaguru G <vijay{_AT_}collab.net>

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1451506 13f79535-47bb-0310-9956-ffa450edef68