Introduce a new test to verify xfs_quota administrator commands can
deal with invalid XFS mount path properly without NULL pointer
dereference issue.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Jie Liu