This file is indexed.

/usr/bin/vlpatch is in libvcs-lite-perl 0.10-1.

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

The actual contents of the file can be viewed below.

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#!/usr/bin/perl

eval 'exec /usr/bin/perl  -S $0 ${1+"$@"}'
    if 0; # not running under some shell

use strict;
use warnings;

use Getopt::Long;

my $output;

GetOptions(
	'output=s' => \$output,
	);

if (!@ARGV) {
	print <<END;

Usage:  vlpatch.pl [--output outfile] original patch
	vlpatch [--output outfile] original	# take patch from stdin

if --output is not specified, the patched file is put in place of
the original, and the original is renamed to *.orig

END
	exit;
}

my $orig = shift @ARGV;
my ($pat,$patsrc) = @ARGV ? ($ARGV[0],$ARGV[0]) : (\*STDIN,'-');
my $el1 = VCS::Lite->new($orig);
my $dt1 = VCS::Lite::Delta->new($patsrc,undef,$orig,$pat);

my $chg = $el1->patch($dt1) or die "Patch failed";

if (!$output) {
	rename $orig, "$orig.orig";
	$output = $orig;
}

open PAT,">$output" or die "Failed to write output, $!";
print PAT $chg->text;
close PAT;