This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
. prototyped and staticized the internal functions while i was here,
. made the thing -Wall clean,
. fixed an error that causes the recipient name to be matched only
for the first characters, as opposed to a full name (wonder why i'm
concerned? Well, one of my login IDs is `j', and i've noticed that
vacation has been sending out replies to all mailing list messages
that had a jkh@ or jmb@ in it :),
. introduced an option -l to list the contents of the database; mucho
useful if you've got (too) many mailing list messages in your inbox
and wanna make sure you don't miss the `important' mails.