Pullup ticket #3512 - requested by tron

Pullup ticket #3512 - requested by tron
mail/fetchmail critical bug fix

Revisions pulled up:
- mail/fetchmail/Makefile                                       1.177
- mail/fetchmail/distinfo                                       1.45
- mail/fetchmailconf/Makefile                                   1.81

---
   Module Name:	pkgsrc
   Committed By:	tron
   Date:		Fri Aug 26 07:19:25 UTC 2011

   Modified Files:
   	pkgsrc/mail/fetchmail: Makefile distinfo
   	pkgsrc/mail/fetchmailconf: Makefile

   Log Message:
   Update "fetchmail" and "fetchmailconf" package to version 6.3.21.
   Changes since version 6.3.20:
   - The IMAP client no longer inserts NUL bytes into the last line of a
     message when it is not closed with a LF or CRLF sequence. Reported
     by Antoine Levitt.  As a side effect of the fix, and in order to
     avoid a full rewrite, fetchmail will now CRLF-terminate the last
     line fetched through IMAP, even if it is originally not terminated
     by LF or CRLF. This bears no relevance if your messages end up in
     mbox, but adds line termination for storages (like Maildir) that do
     not require that the last line be LF- or CRLF-terminated.