statistic: rename title in normal output

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
statistic: truncate precision for output

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
statistic: fix bug where accounting pure ACKs failed

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>