Update tooling to use new log APIs.

* tools/server-side/svn-populate-node-origins-index.c
  (index_revision_adds): use fastest option and handle moves just like adds

* tools/server-side/svn-rep-sharing-stats.c
  (process_one_revision): use the fastest option as we don't use the path list

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1525467 13f79535-47bb-0310-9956-ffa450edef68