sysstat-12.2.0

sysstat-12.2.0

sysstat version 12.2.0 final packaging.
lsm and spec files updated.
Changelog added.

Nothing to get really excited about this version which merely includes a
few bugfixes and adds small improvements to sar and sadf.
But this version marks the beginning of a new stable series, which is
why you should upgrade anyway :-)

Signed-off-by: Sebastien GODARD <sysstat@users.noreply.github.com>