[FIX] base: fix Croatian address formatting

Have a company with Croatian address but no street2 set.
Create and invoice, print it. On the report the street2 will appear
blank (Empty line).

Correcting the formatting of the address fix the issue

opw-2182621

closes odoo/odoo#44789

X-original-commit: 5f4cc31a
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>