render_tag -> tag: PropertyListView

Summary: Converts callsites in PropertyListView (addDetail() and setTextContent()).

Test Plan: Grepped for PhabricatorPropertyListView, addDetail() and setTextContent().

Reviewers: vrana

Reviewed By: vrana

CC: aran

Maniphest Tasks: T2432

Differential Revision: https://secure.phabricator.com/D4695

src/applications/macro/controller/PhabricatorMacroViewController.php

@@ -147,9 +147,9 @@ final class PhabricatorMacroViewController
       foreach ($subscribers as $subscriber) {
         $sub_view[] = $this->getHandle($subscriber)->renderLink();
       }
-      $sub_view = implode(', ', $sub_view);
+      $sub_view = array_interleave(', ', $sub_view);
     } else {
-      $sub_view = '<em>'.pht('None').'</em>';
+      $sub_view = phutil_tag('em', array(), pht('None'));
     }
 
     $view->addProperty(