Log Message:
Update clamav to 0.99.2, based on patch vy Matthias Ferdinand
on pkgsrc-users.

Changes from 0.99.1 to 0.99.2 are available only with ChangeLog and it
is too many to write here.  Please refer ChangeLog file.

0.99.1
------

ClamAV 0.99.1 contains a new feature for parsing Hancom Office files
including extracting and scanning embedded objects. ClamAV 0.99.1
also contains important bug fixes. Please see ChangeLog for details.