Revert "Promote phutil-tag again"

This reverts commit 8fbabdc06d, reversing
changes made to 2dab1c1e42.

src/applications/diffusion/controller/DiffusionRepositoryController.php

@@ -68,7 +68,7 @@ final class DiffusionRepositoryController extends DiffusionController {
       'View Full Commit History');
 
     $panel = new AphrontPanelView();
-    $panel->setHeader(hsprintf("Recent Commits · %s", $all));
+    $panel->setHeader("Recent Commits · {$all}");
     $panel->appendChild($history_table);
     $panel->setNoBackground();
 
@@ -125,7 +125,9 @@ final class DiffusionRepositoryController extends DiffusionController {
 
     $rows = array();
     foreach ($properties as $key => $value) {
-      $rows[] = array($key, $value);
+      $rows[] = array(
+        phutil_escape_html($key),
+        phutil_escape_html($value));
     }
 
     $table = new AphrontTableView($rows);