Added better debug info when aqdb/test_rebuild fails.
Added better debug info when aqdb/test_rebuild fails.

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