[Macintosh filesystem] Fix calculation of file sizes.

Aaru.Filesystems/AppleMFS/File.cs

@@ -279,12 +279,12 @@ namespace Aaru.Filesystems
             stat = new FileEntryInfo
             {
                 Attributes    = attr,
-                Blocks        = entry.flLgLen / _volMdb.drAlBlkSiz,
+                Blocks        = entry.flPyLen / _volMdb.drAlBlkSiz,
                 BlockSize     = _volMdb.drAlBlkSiz,
                 CreationTime  = DateHandlers.MacToDateTime(entry.flCrDat),
                 Inode         = entry.flFlNum,
                 LastWriteTime = DateHandlers.MacToDateTime(entry.flMdDat),
-                Length        = entry.flPyLen,
+                Length        = entry.flLgLen,
                 Links         = 1
             };