Followup to r1532866: derefence pointer to svn_node_kind_t when including node
type value in an error message.

* subversion/libsvn_repos/dump.c
  (verify_directory_entry): kind is a pointer to svn_node_kind_t.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1532943 13f79535-47bb-0310-9956-ffa450edef68