or download this
sub reverse_modifier {
my (@undo) = @{$_[0]};
...
# Setup the log object
my $log = LogSimple->new( logdir => $logdir, logfile => $logfile, logl
+evel => $loglevel, verbosity => $verbosity, exit => \&Hitachi::Raidco
+m::exit_routine(\%modifier) );