Fixed typos for combine2 method
Fixed typos for combine2 method

weftio/jsts,Septima/jsts,mikeatlas/jsts,yeyan/jsts,kolosov-sergey/jsts,nachoalthabe/cluster_poligonal,Septima/jsts,mikeatlas/jsts,kolosov-sergey/jsts,Geode/jsts,Geode/jsts,Septima/jsts,yeyan/jsts,kolosov-sergey/jsts,mikeatlas/jsts,weftio/jsts,weftio/jsts,Geode/jsts