[FIX] tools: keep comment in CSV export
[FIX] tools: keep comment in CSV export

The comments field was ignored (because reasons) when exporting terms in CSV.
This was an issue when using the wizard 'Synchronize Terms' as it first export
the terms of every module in CSV.

opw-673853

storm-computers/odoo,microcom/odoo,hip-odoo/odoo,dfang/odoo,bplancher/odoo,hip-odoo/odoo,microcom/odoo,Elico-Corp/odoo_OCB,microcom/odoo,microcom/odoo,storm-computers/odoo,dfang/odoo,sysadminmatmoz/OCB,Elico-Corp/odoo_OCB,dfang/odoo,bplancher/odoo,bplancher/odoo,ygol/odoo,microcom/odoo,sysadminmatmoz/OCB,bplancher/odoo,ygol/odoo,microcom/odoo,Elico-Corp/odoo_OCB,laslabs/odoo,laslabs/odoo,sysadminmatmoz/OCB,bplancher/odoo,sysadminmatmoz/OCB,sysadminmatmoz/OCB,laslabs/odoo,storm-computers/odoo,ygol/odoo,hip-odoo/odoo,Elico-Corp/odoo_OCB,laslabs/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,hip-odoo/odoo,dfang/odoo,dfang/odoo,ygol/odoo,hip-odoo/odoo,bplancher/odoo,storm-computers/odoo,sysadminmatmoz/OCB,storm-computers/odoo,hip-odoo/odoo,laslabs/odoo,dfang/odoo,ygol/odoo,sysadminmatmoz/OCB,storm-computers/odoo,laslabs/odoo,ygol/odoo,ygol/odoo