Sitewide override of the "Export Month's Events" sort of button link text (e.g. if all iCal links output 1 year's worth of events, like https://gist.github.com/cliffordp/ab1f7c4d95723ee6f892)

functions.php

<?php

// From https://gist.github.com/cliffordp/b0e5ece86040d9838f09
//
// Sitewide override of the "Export Month's Events" sort of button link text
// e.g. if all iCal links output 1 year's worth of events, like https://gist.github.com/cliffordp/ab1f7c4d95723ee6f892
// 
// See /wp-content/plugins/the-events-calendar/src/functions/template-tags/ical.php for the filter
add_filter( 'tribe_events_ical_export_text', 'cliff_tribe_ical_export_custom_text' );
function cliff_tribe_ical_export_custom_text() {
  return 'Export events to iCal';
}