Merge r596448 from trunk:

* Convert request time to seconds before before storing it in unique_id_rec
  struct.

PR: 37064
Submitted by: Kobayashi <kobayashi firstserver.co.jp>
Reviewed by: rpluem, jim, pquerna


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@662575 13f79535-47bb-0310-9956-ffa450edef68