Potentially wrong help message for min-depth

[w-lampaert]

The min-depth help message is as follows:

'Print total for a directory only if it is at least N levels above the top directory, defaults to 0'

From my test it seems that this should be:

'Print total for a directory only if it is at least N levels below the top directory, defaults to 0'

[stevenvdb]

Fixed in f863bf4 (part of #4)