split-logfile: Fix perl error: 'Can't use string ("example.org:80")

  as a symbol ref while "strict refs"'. PR 56329.

Submitted By: Holger Mauermann <mauermann gmail.com>
Committed By: covener




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1648719 13f79535-47bb-0310-9956-ffa450edef68