This upgrade to version 6.9.1 mainly fixes a security issue, which allows an attacker
to modify SMART settings due to insufficient input validation in check_smart (bsc#1183057).

In addition, the following new features are integrated:
+ Allows using PCI device paths as device name(s) (#64)
+ Introduce new optional parameter -l/--ssd-lifetime) which additionally
checks SMART attribute "Percent_Lifetime_Remain"
(available on some SSD drives). (#66 #67)
+ Allow skip self-assessment check (--skip-self-assessment)
+ Add Command_Timeout to default raw list
+ Added support for NVMe drives
+ The feature was requested in #30 . This PR adds the possibility to
use 3ware,N and cciss,N drives in combination with the
global -g parameter.
+ Furthermore this PR adjusts the output of the plugin when the -g
is used in combination with hardware raid controllers. Instead of
showing the logical device name (/dev/sda for example), the plugin
will now show the controller with drive number
+ Add Reported_Uncorrect and Reallocated_Event_Count to default raw list.