Merge r1648719 from trunk:

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



Submitted by: covener
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1651095 13f79535-47bb-0310-9956-ffa450edef68