Corrected success check of itdb_shuffle_write
Corrected success check of itdb_shuffle_write

The check for the success of itdb_shuffle_write in itdb_write_file_internal
is now correct.

neuschaefer/libgpod,neuschaefer/libgpod,hyperair/libgpod,neuschaefer/libgpod,hyperair/libgpod,hyperair/libgpod,hyperair/libgpod,hyperair/libgpod,neuschaefer/libgpod,neuschaefer/libgpod