* Send "Personality unknown" to debug, not info, remove unnecessary newline.
* Add support for "linear" personality.
* Always set number of active disks to 0 when a device is inactive.
* Add total disks calculation to unknown personalites.
Signed-off-by: Ben Kochie <superq@gmail.com>
We seem to have a small number of Linux servers here that have lines in
/proc/mdstat that cannot be parsed by the node exporter, due to them
containing attributes that are not matched by the regular expression
("super 1.2").
Extend the regular expression to skip this data, just like we do for all
of the other status lines.
