Negative wasted space in status display

[MakOwner]

Edit:
'doh! Is this the correct answer?
https://sourceforge.net/p/snapraid/discussion/1677233/thread/885dd732/

I have two snapraid arrays that both report negative wasted space.
How is this possible and is this correct? Should I be concerned?

SnapRAID status report:

   Files Fragmented Excess  Wasted  Used    Free  Use Name
            Files  Fragments  GB      GB      GB
    8237       0       0   -29.6    1850     118  94% d01
     516       0       0   -31.0    1851     117  94% d02
     564       0       0   -31.0    1849     119  93% d03
     566       0       0   -31.0    1849     119  93% d04
     592       0       0   -31.0    1850     118  94% d05
    3365     106     358   -30.7    1855     113  94% d06
   68773       3       7   -22.1    1861     106  94% d07
    3478       3       4   -30.6    1855     112  94% d08
     845       0       0   -31.0    1848     119  93% d09
    1167       0       0   -30.9    1852     116  94% d10
    1727       8      15   -32.3    1846     121  93% d11
    1851      27      59   -32.2    1846     120  93% d12
     439       0       0   -32.5     442    1525  22% d13
       4       0       0   -32.5       0    1967   0% d14
 --------------------------------------------------------------------------
   92124     147     443     0.0   22661    4895  82%

[John]

Yes, this is it - I asked for this "feature". Negative is good and "more negative" is better :-)

It started with a "Wasted" that would go only to 0 and let's say 50GB (non-negative) would mean that you need to keep 50GB free on that disk otherwise you run out of parity. But if you eat some space on that disk with anything that's not included in snapraid the waste goes down. At first it was going only down to 0 so you wouldn't know how well you're doing (in having enough parity versus a data disk with lots of files). Now you can tell, for example if you have -0.1GB waste probably if you fill that data disk with one hundred thousand files you'll run out of parity. However, if you have -30GB you're probably perfectly fine.