I made the following config changes to my editor. Set the 'Tab size' and 'Indent' to 4 and the 'Continuation indent' to 8.

```ruby
	def check
		connect
		disconnect
		if (banner =~ /220 PCMan's FTP Server 2\.0/)
		return Exploit::CheckCode::Vulnerable
		end
		return Exploit::CheckCode::Safe
	end
```