Log Message:
Update sylpheed to 0.8.9, closes pkg/19937.

Main changes are, for full changes see source codes changelog:
    * Transition from libjconv to direct use of iconv() API has been made.
    * Quoted-Printable encoding for outgoing messages has been enabled.
    * Content-Transfer-Encoding for outgoing messages became user definable.
    * The abbreviation method of newsgroup name has been improved.
    * Russian locales support has been improved.
    * Fixes for message canonicalization have been made.
    * Bugs of header MIME encoding have been fixed.