Log Message:
Update to 3.4.8, bugfix release.

Changes:

BUGFIX: File descriptor leaks when connection to delivery host fails
BUGFIX: Decoding NUL characters causes message truncation
BUGFIX: Many files not written to group directory when using managed groups
BUGFIX: Some LDAs/MTAs truncate message when single dots not properly quoted
BUGFIX: 7BIT encoding contains 8BIT characters
BUGFIX: Messages to multiple local recipients may fail to decode completely