This file is indexed.

/usr/share/initramfs-tools/hooks/growroot is in cloud-initramfs-growroot 0.18.debian5.

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
set -e

PREREQS=""
case $1 in
    prereqs) echo "${PREREQS}"; exit 0;;
esac

. /usr/share/initramfs-tools/hook-functions

##
copy_exec /sbin/sfdisk /sbin
copy_exec /usr/bin/growpart /sbin
copy_exec /sbin/udevadm /sbin
copy_exec /usr/bin/awk /bin
copy_exec /bin/sed /bin
copy_exec /bin/rm /bin
copy_exec /bin/readlink /bin

# vi: ts=4 noexpandtab