skip the inet6 address line if present
Introduced a base class ItemsList which implements the GetNext()
interface.
IfConfigReader and RunningProcessesList now derive from it, instead of
duplicating code.
use LC_ALL=C
Implement VolumeReader and use it in Inventory (does not fill any
parameter yet)
Forgot to call Rewind() in the constructor
Actually it's useless to call Rewind() in the base constructor, because
the items list is not yet populated
Call Rewind() after populating the volume list
Fix fields