mappings/Makefile: Veg+.cs-VegBIEN.csv: Join Veg+-VegCore.csv to VegCore-VegBIEN.csv in quiet mode, to avoid adding "No non-empty join mapping" to the Comments column
mappings/Makefile: Veg+.cs-VegBIEN.csv: Join Veg+-VegCore.csv to VegCore-VegBIEN.csv in quiet mode, to avoid adding "No non-empty join mapping" to the Comments column