data/seqtk-1.3/khash.h:500: conenient ==> convenient
data/seqtk-1.3/seqtk.c:1428: dropse ==> drops
data/seqtk-1.3/seqtk.c:1691: dropse ==> drops
data/seqtk-1.3/seqtk.c:1711: dropse ==> drops