sub get_versions_from_to {
my ($base_dir, $from, $to) = @_;
- opendir my $dh, $base_dir or die "couldn't open dir: $!";
+ opendir( my $dh, $base_dir ) or die "couldn't open dir: $!";
my @versions = grep -d "$base_dir/$_" && /\d+\.\d+\.\d+/, readdir $dh;
closedir $dh;