Small fix in build script.
Small fix in build script.

robotustra/curax,fxtentacle/CuraEngine,Ultimaker/CuraEngine,Jwis921/PersonalCuraEngine,alex1818/CuraEngine,electrocbd/CuraEngine,alephobjects/CuraEngine,foosel/CuraEngine,electrocbd/CuraEngine,be3d/CuraEngine,mspark93/CuraEngine,Jwis921/PersonalCuraEngine,Skeen/CuraJS-Engine,derekhe/CuraEngine,alex1818/CuraEngine,pratikshashroff/pcura,phonyphonecall/CuraEngine,Skeen/CuraJS-Engine,fxtentacle/CuraEngine,patrick3coffee/CuraTinyG,phonyphonecall/CuraEngine,uus169/CuraEngine,Jwis921/PersonalCuraEngine,mspark93/CuraEngine,jacobdai/CuraEngine-1,mspark93/CuraEngine,foosel/CuraEngine,jacobdai/CuraEngine-1,uus169/CuraEngine,be3d/CuraEngine,alex1818/CuraEngine,alephobjects/CuraEngine,phonyphonecall/CuraEngine,derekhe/CuraEngine,fxtentacle/CuraEngine,totalretribution/CuraEngine,electrocbd/CuraEngine,patrick3coffee/CuraTinyG,foosel/CuraEngine,Intrinsically-Sublime/CuraEngine,alephobjects/CuraEngine,uus169/CuraEngine,ROBO3D/CuraEngine,markwal/CuraEngine,patrick3coffee/CuraTinyG,robotustra/curax,daid/CuraCutEngine,pratikshashroff/pcura,jacobdai/CuraEngine-1,totalretribution/CuraEngine,ROBO3D/CuraEngine,Intrinsically-Sublime/CuraEngine,Ultimaker/CuraEngine,Skeen/CuraJS-Engine,derekhe/CuraEngine,pratikshashroff/pcura,markwal/CuraEngine,markwal/CuraEngine,robotustra/curax,daid/CuraCutEngine,be3d/CuraEngine,totalretribution/CuraEngine,Intrinsically-Sublime/CuraEngine,ROBO3D/CuraEngine