account_payment.xml

<?xml version="1.0" encoding="utf-8" ?>
<templates xml:space="preserve">

    <!--  Copyright 2020 Le Filament
          License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).  -->

    <t t-extend="ShowPaymentInfo">
        <t t-jquery='div.oe_form_field' t-operation='replace'>
            <div
                class="oe_form_field"
                style="margin-right: 10px; text-overflow: ellipsis; overflow: hidden; white-space: nowrap;"
                t-att-title="line.date_maturity + ' - ' + line.journal_name"
            >
                <t t-esc="line.date_maturity" /> - <t t-esc="line.journal_name" />
            </div>
        </t>
    </t>

</templates>