Bound the extents returned by SparseMemoryStream to the length of the stream, where the stream length isn't an exact multiple of the internal chunk size.
Bound the extents returned by SparseMemoryStream to the length of the stream, where the stream length isn't an exact multiple of the internal chunk size.

breezechen/DiscUtils,drebrez/DiscUtils,breezechen/DiscUtils,quamotion/discutils