moduos fix file size os.stat()

[ens4dz]

>>> os.stat('/t/test/adan.mp3') 
(32768, 0, 0, 0, 0, 0, 1080601, 10273, 10273, 10273) 
>>> os.stat('/t/test/1hour.amr') 
(32768, 0, 0, 0, 0, 0, 0, 10273, 10273, 10273)