[sork] disable writing .forward file in sendmail FTP driver for Vacation

[Sam Rausch]

I'm using sork with Exim, and although it is mostly sendmail compatible, 
there are a few quirks that I'd like to correct. The sendmail drivers 
work well, but I'd like to modify the behavior so that it will write the 
vacation message and db files but NOT write a .forward file. Where in 
the code would I be able to comment out
 the forward file?