diff --git a/core/modules/aggregator/aggregator.module b/core/modules/aggregator/aggregator.module
index cd828a3..b30f442 100644
--- a/core/modules/aggregator/aggregator.module
+++ b/core/modules/aggregator/aggregator.module
@@ -28,8 +28,8 @@ function aggregator_help($path, $arg) {
       $output .= '<dd>' . t('Users view feed content in the <a href="!aggregator">main aggregator display</a>, or by <a href="!aggregator-sources">their source</a> (usually via an RSS feed reader). The most recent content in a feed can be displayed as a block through the <a href="!admin-block">Blocks administration page</a>.', array('!aggregator' => \Drupal::url('aggregator.page_last'), '!aggregator-sources' => \Drupal::url('aggregator.sources'), '!admin-block' => \Drupal::url('block.admin_display'))) . '</dd>';
       $output .= '<dt>' . t('Adding, editing, and deleting feeds') . '</dt>';
       $output .= '<dd>' . t('Administrators can add, edit, and delete feeds, and choose how often to check each feed for newly updated items on the <a href="!feededit">Feed aggregator administration page</a>.', array('!feededit' => \Drupal::url('aggregator.admin_overview'))) . '</dd>';
-      $output .= '<dt>' . t('OPML integration') . '</dt>';
-      $output .= '<dd>' . t('A <a href="!aggregator-opml">machine-readable OPML file</a> of all feeds is available. OPML is an XML-based file format used to share outline-structured information such as a list of RSS feeds. Feeds can also be <a href="!import-opml">imported via an OPML file</a>.', array('!aggregator-opml' => \Drupal::url('aggregator.opml_page'), '!import-opml' => \Drupal::url('aggregator.admin_overview'))) . '</dd>';
+      $output .= '<dt>' . t('<abbr title="Outline Processor Markup Language">OPML</abbr> integration') . '</dt>';
+      $output .= '<dd>' . t('A <a href="!aggregator-opml">machine-readable OPML file</a> of all feeds is available. OPML is an XML-based file format used to share outline-structured information such as a list of RSS feeds. Feeds can also be <a href="!import-opml">imported via an OPML file</a>.', array('!aggregator-opml' => \Drupal::url('aggregator.opml_page'), '!import-opml' => \Drupal::url('aggregator.opml_add'))) . '</dd>';
       $output .= '<dt>' . t('Configuring cron') . '</dt>';
       $output .= '<dd>' . t('A correctly configured <a href="!cron">cron maintenance task</a> is required to update feeds automatically.', array('!cron' => \Drupal::url('system.cron_settings'))) . '</dd>';
       $output .= '</dl>';
@@ -42,7 +42,7 @@ function aggregator_help($path, $arg) {
     case 'admin/config/services/aggregator/add/feed':
       return '<p>' . t('Add a feed in RSS, RDF or Atom format. A feed may only have one entry.') . '</p>';
     case 'admin/config/services/aggregator/add/opml':
-      return '<p>' . t('<acronym title="Outline Processor Markup Language">OPML</acronym> is an XML format used to exchange multiple feeds between aggregators. A single OPML document may contain a collection of many feeds. Drupal can parse such a file and import all feeds at once, saving you the effort of adding them manually. You may either upload a local file from your computer or enter a URL where Drupal can download it.') . '</p>';
+      return '<p>' . t('<abbr title="Outline Processor Markup Language">OPML</abbr> is an XML format used to exchange multiple feeds between aggregators. A single OPML document may contain a collection of many feeds. Drupal can parse such a file and import all feeds at once, saving you the effort of adding them manually. You may either upload a local file from your computer or enter a URL where Drupal can download it.') . '</p>';
   }
 }