trytond-timesheet_work_category/message.xml

<?xml version="1.0"?>
<!-- The COPYRIGHT file at the top level of this repository contains the full
     copyright notices and license terms. -->
<tryton>
    <data grouped="1">
		<!-- timesheet.work.category -->
        <record model="ir.message" id="msg_timesheet_work_category_wrong_name">
            <field name="text">Invalid category name "%(category)s": You can not use " / " in name field.</field>
        </record>
        <record model="ir.message" id="msg_timesheet_work_category_name_parent_uniq">
            <field name="text">The name of a party category must be unique by parent.</field>
        </record>
    </data>
</tryton>