[FIX] l10n_be_invoice_bba: Fixed the length of random generated code to ensure it generates 10 digit code so that it allows validation of invoice. (Maintenance Case: 608485)
Merge pull request #616 from odoo-dev/7.0-opw-608485-rgo

[FIX] l10n_be_invoice_bba: random generation do not use sequence, so should be 10 char long during padding