Fix function CreateHeaderDo (#67): More problems in CreateHeaderDo: The iteration through the variables didn't work and the prefix for the user-defined variables was not used.
Fix function CreateHeaderDo (#67): More problems in CreateHeaderDo: The iteration through the variables didn't work and the prefix for the user-defined variables was not used.

msteghofer/CSnake,msteghofer/CSnake,csnake-org/CSnake,msteghofer/CSnake,csnake-org/CSnake,csnake-org/CSnake