[Chicken-users] POP3 egg: issue and possible fix.

[Geoffrey]

The commercial mail server i connect to sends a simple +OK after a USER. 
It doesn't have any trailing characters, so this match from the pop3.scm 
fetch proc fails:
    (match (string-match "(\\+OK|\\-ERR) (.*)" ln)

I changed it (somewhat inexpertly) to:
    (match (string-match "(\\+OK|\\-ERR) *(.*)" ln)

and it works.