This file is indexed.

/usr/share/xscreensaver/config/timetunnel.xml is in xscreensaver-gl-extra 5.34-2ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="timetunnel" _label="TimeTunnel" gl="yes">

  <command arg="-root"/>

  <video href="http://www.youtube.com/watch?v=GZe5rk_7TnA"/>

  <number id="start" type="slider" arg="-start %"
          _label="Start sequence time" _low-label="0 sec" _high-label="30 sec"
          low="0.00" high="27.79" default="0.00"/>

  <number id="end" type="slider" arg="-end %"
          _label="End sequence time" _low-label="0 sec" _high-label="30 sec"
          low="0.00" high="27.79" default="27.79"/>

  <hgroup>
   <vgroup>
    <boolean id="logo"    _label="Draw logo"       arg-unset="-no-logo"/>
    <boolean id="reverse" _label="Run backward"    arg-set="-reverse"/>
    <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
   </vgroup>
   <vgroup>
<!--
    <string id="tardis"  _label="Tardis image            " arg="-tardis %"/>
    <string id="head"    _label="Head image             "  arg="-head %"/>
    <string id="marquee" _label="Marquee image        "    arg="-marquee %"/>
    <string id="tun1"    _label="Tardis tunnel image "     arg="-tun1 %"/>
    <string id="tun2"    _label="Middle tunnel image"      arg="-tun2 %"/>
    <string id="tun3"    _label="Final tunnel image   "    arg="-tun3 %"/>
-->
   </vgroup>
  </hgroup>

  <xscreensaver-updater />

  <_description>
An animation similar to the opening and closing effects on the
Dr. Who TV show.

Written by Sean P. Brennan; 2005.
  </_description>
</screensaver>