..is "Contacts import and export"
This is because the entry in lang.js:
'import - export': 'Contacts import and export'
is used as the tooltip in both ContactManager.js and CalendarToolbar.js
imp_exp: new Ext.Action({
text: lang('import/export'),
tooltip: lang('calendar import - export'),
This is fixed by adding a new entry in lang.js,
'calendar import - export': 'Calendar import and export',
and using that as the tooltip in CalendarToolbar.js.
Cheers