Fixed a C string_join test
Fixed a C string_join test

jmptrader/excel_to_code,jmptrader/excel_to_code,kevinmel2000/excel_to_code,tamc/excel_to_code,kevinmel2000/excel_to_code,tamc/excel_to_code,tamc/excel_to_code,tamc/excel_to_code,dberlin/excel_to_code,dberlin/excel_to_code