fixup! Add back authentication checkbox for mailer settings

Author: miaulalala

apps/settings/templates/settings/admin/additional-mail.php

@@ -123,7 +123,9 @@
 		<p id='setting_smtpauth' <?php if ($_['mail_smtpmode'] !== 'smtp') {
 			print_unescaped(' class="hidden"');
 		} ?>>
-			<label for="mail_smtpauthtype"><?php p($l->t('Authentication method')); ?><span class="icon-info" title="Only applies when authentication is required"></span></label>
+			<label for='mail_smtpauthtype'><?php p($l->t('Authentication method')); ?>
+					<span class="icon-info" title="<?php p($l->t('Only applies when authentication is required')); ?>"></span>
+			</label>
 			<select name="mail_smtpauthtype" id="mail_smtpauthtype" disabled="disabled">
 				<?php foreach ($mail_smtpauthtype as $authtype => $name):
 					$selected = '';