my $repo = Git->repository();
$opt_w = $repo->config('cvsexportcommit.cvsdir') unless defined $opt_w;
-my $tmpdir = File::Temp->newdir;
+my $tmpdir = File::Temp::tempdir(CLEANUP => 1);
my $hash_algo = $repo->config('extensions.objectformat') || 'sha1';
my $hexsz = $hash_algo eq 'sha256' ? 64 : 40;