Fixed typo in Dockerfile
Fixed typo in Dockerfile

dalg24/DataTransferKit,ORNL-CEES/DataTransferKit,Rombur/DataTransferKit,Rombur/DataTransferKit,amccaskey/DataTransferKit,dalg24/DataTransferKit,ORNL-CEES/DataTransferKit,ORNL-CEES/DataTransferKit,amccaskey/DataTransferKit,ORNL-CEES/DataTransferKit,dalg24/DataTransferKit,dalg24/DataTransferKit,amccaskey/DataTransferKit,amccaskey/DataTransferKit,Rombur/DataTransferKit,Rombur/DataTransferKit