Fixed Coverity's CIDs 175, 58, 59 and 60 in DragOverS.c.
Fixed Coverity's CIDs 175, 58, 59 and 60 in DragOverS.c.

fjardon/motif,fjardon/motif,unix-junkie/motif,fjardon/motif,unix-junkie/motif,unix-junkie/motif