commit 9253978e29126ec3a2b5f70f980afd200ed2a63d
Author: Joel Pittet <joel@pittet.ca>
Date:   Tue Aug 4 11:26:25 2015 -0700

    bit shorter

diff --git a/core/lib/Drupal/Core/Database/Install/Tasks.php b/core/lib/Drupal/Core/Database/Install/Tasks.php
index 4e6e2fc..409c859 100644
--- a/core/lib/Drupal/Core/Database/Install/Tasks.php
+++ b/core/lib/Drupal/Core/Database/Install/Tasks.php
@@ -148,25 +148,19 @@ public function runTasks() {
       }
     }
     // Check for failed results and compile message
-    $failure = FALSE;
-    $error = [];
+    $errors = [];
     foreach ($this->results as $result => $success) {
       if (!$success) {
-        $failure = TRUE;
-        $error[] = $result;
+        $errors[] = $result;
       }
     }
-    if ($failure) {
-      $message = array(
-        'error' => array(
-          '#markup' => t('Resolve all issues below to continue the installation. For help configuring your database server, see the <a href="https://www.drupal.org/getting-started/install">installation handbook</a>, or contact your hosting provider.'),
-        ),
-        'item_list' => array(
-          '#theme' => 'item_list',
-          '#items' => $error,
-        ),
-      );
-      $message = \Drupal::service('renderer')->renderPlain(($message), 'error');
+    if ($errors) {
+      $error_list = [
+        '#theme' => 'item_list',
+        '#items' => $errors,
+      ];
+      $error_list = \Drupal::service('renderer')->renderPlain($error_list);
+      $message = t('Resolve all issues below to continue the installation. For help configuring your database server, see the <a href="https://www.drupal.org/getting-started/install">installation handbook</a>, or contact your hosting provider.@errors', ['@errors' => $error_list]);
       throw new TaskException($message);
     }
   }