Fix add_disk unit tests to keep up with plenary formatting changes.
Fix add_disk unit tests to keep up with plenary formatting changes.

stdweird/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon,stdweird/aquilon,guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon