fix wrong parameter for md5sum on SmartOS
fix wrong parameter for md5sum on SmartOS

prologic/fabtools,ronnix/fabtools,fabtools/fabtools,wagigi/fabtools-python,ahnjungho/fabtools,sociateru/fabtools,pombredanne/fabtools,bitmonk/fabtools,davidcaste/fabtools,badele/fabtools,hagai26/fabtools,AMOSoft/fabtools,n0n0x/fabtools-python