Correct flags on sg_io_hdr (#186)
Correct flags on sg_io_hdr (#186)

Previously the code set SG_FLAG_LUN_INHIBIT when LTFS issues SG_IO.
But this flag is not effective to any FC/SAS devices anymore. So it is
unset in this change.
LinearTapeFileSystem/ltfs,LinearTapeFileSystem/ltfs,LinearTapeFileSystem/ltfs,LinearTapeFileSystem/ltfs,LinearTapeFileSystem/ltfs