sysstat-12.1.5

sysstat-12.1.5

sysstat version 12.1.5 final packaging.
lsm and spec files updated.
Changelog added.

This version completes the support for PCP (Performance Co-Pilote)
output format with sadf: All statistics collected by sar/sadc can now
be exported to a PCP archive file.

This version also includes now a simulation test environment. This makes
it possible to run non regression tests with reproducible results. The
tests are run in a simulated environment composed of kernel files with
predefined values.
For now, only non regression tests have been added for sar, sadc and
sadf commands. Yet they have permitted to identify several bugs which
have been fixed here and also backported to version 12.0.5.

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