Nice ok. So that turns this:

    def check
        connect
        disconnect
        if (banner =~ /220 PCMan's FTP Server 2\.0/)
        return Exploit::CheckCode::Vulnerable
        end
        return Exploit::CheckCode::Safe
    end

To this:

```ruby
def check
  connect
  disconnect
  if (banner =~ /220 PCMan's FTP Server 2\.0/)
  return Exploit::CheckCode::Vulnerable
  end
  return Exploit::CheckCode::Safe
end
```