File: capture-stderr

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ack-grep 1.80-1
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#! /usr/bin/perl
use strict;

# Untaint our arguments (we're very trusting):
my ($stderr)  = ((shift @ARGV) =~ /^(.+)$/s) or die 'No stderr';
my ($program) = ((shift @ARGV) =~ /^(.+)$/s) or die 'No program';

open(STDERR, '>', $stderr) or die "Can't redirect STDERR to $stderr: $!";

$0 = $program;
do $program;
die $@ if $@;
die "Couldn't run $program: $!"; # Ack doesn't return, it calls exit