When registering payment for customer invoices and vendor bills at the same time, a misleading error message appears"You can't register payments for journal eithers being both inbound and outbound". Replacing it with a clear message "You can't register payments for both inbound and outbound moves at the same time." Task id: 3638740 closes odoo/odoo#162464 X-original-commit: a18cb2ebb133c2e4b72ddd5d8cda23d2b71006dd Signed-off-by: de Wouters de Bouchout Jean-Benoît (jbw) <jbw@odoo.com> Signed-off-by: Seif Gneedy (segn) <segn@odoo.com>