sysstat: add version 12.1.6

[wwwutz]

• for the beloved iostat command

[pmenzel]

Interesting read for iostat: https://www.robustperception.io/mapping-iostat-to-the-node-exporters-node_disk_-metrics.

[wwwutz]

"Interesting read for iostat:" WTF ? Did you a) read this or this the first hit of a google search ? b) are you related to this company ? Do we have Prometbla installed anywhere ?

[pmenzel]

Yes, neither did I know about /proc/diskstats nor iostat -x. You should know, that interesting is quite subjective. If you do not agree, too bad. But please use a different forum to troll.