when dumping to csv, make the header optional
when dumping to csv, make the header optional

default is with no header, `--header` adds it to the output files

Beit-Hatfutsot/dbs-back,Beit-Hatfutsot/dbs-back,Beit-Hatfutsot/dbs-back,Beit-Hatfutsot/dbs-back