[Mailman-Users] bypassing sending out the 'you have been subscribed' messages on mass subscriptions

[Jonathan Vanasco]

i'm moving over a nightclub announcement list over to mailman ( he's 
got 1400 subscribers he's been bcc'ing every week )

i'd like to make the mail change transparent to users -- ie, not send 
out the 'you have been subscribed' messages from the mass subscription 
entry.

there doesn't seem to be an option to do this.  short of turning off 
exim for 20minutes and manually deleting items from the queue, does 
anybody know where in the source i can adjust things?