Bulk_Upgrader_Skin::add_strings()
Source
File: wp-admin/includes/class-bulk-upgrader-skin.php
public function add_strings() {
$this->upgrader->strings['skin_upgrade_start'] = __('The update process is starting. This process may take a while on some hosts, so please be patient.');
/* translators: 1: Title of an update, 2: Error message */
$this->upgrader->strings['skin_update_failed_error'] = __('An error occurred while updating %1$s: %2$s');
/* translators: 1: Title of an update */
$this->upgrader->strings['skin_update_failed'] = __('The update of %1$s failed.');
/* translators: 1: Title of an update */
$this->upgrader->strings['skin_update_successful'] = __( '%1$s updated successfully.' );
$this->upgrader->strings['skin_upgrade_end'] = __('All updates have been completed.');
}