diff --git a/core/includes/file.inc b/core/includes/file.inc
index 3fcb38a4e4..228515df6b 100644
--- a/core/includes/file.inc
+++ b/core/includes/file.inc
@@ -923,7 +923,6 @@ function file_unmanaged_delete_recursive($path, $callback = NULL) {
 }
 
 
-
 /**
  * Moves an uploaded file to a new location.
  *
diff --git a/core/lib/Drupal/Component/Datetime/DateTimePlus.php b/core/lib/Drupal/Component/Datetime/DateTimePlus.php
index 457b73e847..c0ebe15ed9 100644
--- a/core/lib/Drupal/Component/Datetime/DateTimePlus.php
+++ b/core/lib/Drupal/Component/Datetime/DateTimePlus.php
@@ -432,7 +432,6 @@ protected function prepareFormat($format) {
   }
 
 
-
   /**
    * Examines getLastErrors() to see what errors to report.
    *
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
index 2de3852080..f39b7d8fba 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/EntityResourceTestBase.php
@@ -328,7 +328,6 @@ public function testGet() {
     $url->setOption('query', []);
 
 
-
     // DX: 406 when ?_format is missing, except when requesting a canonical HTML
     // route.
     $response = $this->request('GET', $url, $request_options);
@@ -373,7 +372,6 @@ public function testGet() {
     $this->assertArrayNotHasKey('Link', $response->getHeaders());
 
 
-
     $this->setUpAuthorization('GET');
 
 
@@ -1001,7 +999,6 @@ public function testPatch() {
     $this->assertResourceErrorResponse(400, 'Syntax error', $response);
 
 
-
     $request_options[RequestOptions::BODY] = $parseable_invalid_request_body;
 
 
diff --git a/core/modules/simpletest/src/KernelTestBase.php b/core/modules/simpletest/src/KernelTestBase.php
index 8c92ec7dad..b133bfb2fb 100644
--- a/core/modules/simpletest/src/KernelTestBase.php
+++ b/core/modules/simpletest/src/KernelTestBase.php
@@ -454,7 +454,6 @@ protected function installSchema($module, $tables) {
   }
 
 
-
   /**
    * Installs the storage schema for a specific entity type.
    *
diff --git a/core/modules/views/src/Plugin/views/filter/BooleanOperator.php b/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
index 917a30b848..fa0d730f83 100644
--- a/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
+++ b/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
@@ -49,7 +49,6 @@ class BooleanOperator extends FilterPluginBase {
   public $accept_null = FALSE;
 
 
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
index 335fd99d81..a036e150db 100644
--- a/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
+++ b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
@@ -1199,7 +1199,6 @@ protected function exposedTranslate(&$form, $type) {
   }
 
 
-
   /**
    * Sanitizes the HTML select element's options.
    *
diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index a593e62c7d..69a2bd9a07 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -91,6 +91,7 @@
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookMenuSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Semantics/TInHookSchemaSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/CommaSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/EmptyLinesSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/ObjectOperatorIndentSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/ObjectOperatorSpacingSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/WhiteSpace/OpenTagNewlineSniff.php"/>
diff --git a/core/tests/Drupal/Tests/Core/Access/AccessResultTest.php b/core/tests/Drupal/Tests/Core/Access/AccessResultTest.php
index 647da61255..fc3722fd5e 100644
--- a/core/tests/Drupal/Tests/Core/Access/AccessResultTest.php
+++ b/core/tests/Drupal/Tests/Core/Access/AccessResultTest.php
@@ -698,8 +698,6 @@ public function andOrCacheabilityPropagationProvider() {
       [$neutral_un, 'OR', $forbidden_un, FALSE, NULL],
 
 
-
-
       // Allowed (ct) AND allowed (ct,cf,un).
       [$allowed_ct, 'AND', $allowed_ct, TRUE, TRUE],
       [$allowed_ct, 'AND', $allowed_cf, TRUE, FALSE],