The ID of spins in seriesTab_multi.ser was not formatted correctly to SPARKY format.

Progress sr #3043: (https://gna.org/support/index.php?3043) - support for NMRPipe seriesTab format *.ser.

Troels E. Linnet provided this patch. Commit by: tlinset _aaattt_ gmail_dot_com

Signed-off-by: Edward d'Auvergne <edward _att_ nmr-relax _dott_ com>