This file is indexed.

/etc/resolvconf/update-libc.d/avahi-daemon is in avahi-daemon 0.7-3.1ubuntu1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh
#
# If we have an unicast .local domain, we immediately disable avahi to avoid
# conflicts with the multicast IP4LL .local domain

if [ -x /usr/lib/avahi/avahi-daemon-check-dns.sh ]; then
  exec /usr/lib/avahi/avahi-daemon-check-dns.sh
fi