MAGETWO-43933: Broken styling for "Integration Tokens for Extensions" modal window

Author: Dubovyk Oleksandr

app/code/Magento/Integration/Block/Adminhtml/Integration/Tokens.php

@@ -37,7 +37,7 @@ protected function _prepareForm()
 
         $fieldset = $form->addFieldset(
             'base_fieldset',
-            ['legend' => __('Integration Tokens for Extensions'), 'class' => 'fieldset-wide']
+            ['legend' => __('Integration Tokens for Extensions'), 'class' => ' fieldset-wide']
         );
 
         foreach ($this->getFormFields() as $field) {

app/code/Magento/Integration/view/adminhtml/templates/integration/activate/permissions/tab/webapi.phtml

@@ -11,7 +11,7 @@
 // @codingStandardsIgnoreFile
 
 ?>
-<fieldset class="fieldset form-inline entry-edit">
+<fieldset class="admin__fieldset form-inline entry-edit">
     <?php if ($block->isTreeEmpty()): ?>
         <p class="empty"><?php /* @escapeNotVerified */ echo __('No permissions requested'); ?></p>
     <?php else: ?>