This file is indexed.

/usr/share/Crack/scripts/smartcomp is in crack-common 5.0a-9.3.

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
###
# This program was written by and is copyright Alec Muffett 1991,
# 1992, 1993, 1994, 1995, and 1996, and is provided as part of the
# Crack v5.0 Password Cracking package.
#
# The copyright holder disclaims all responsibility or liability with
# respect to its usage or its effect upon hardware or computer
# systems, and maintains copyright as set out in the "LICENCE"
# document which accompanies distributions of Crack v5.0 and upwards.
###

for file in $*
do
	( gzip -9 $file ) ||
		( compress $file ) ||
		( pack $file ) ||
		( echo $0: cant compress $file )
done

exit 0