* subversion/libsvn_repos/dump.c
  (verify_directory_entry): Following up on r1520419, initialize variable
    before it is being used to report an error.

Found by: The warning buildbot


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1520751 13f79535-47bb-0310-9956-ffa450edef68