diff --git a/core/lib/Drupal/Component/Diff/Engine/DiffEngine.php b/core/lib/Drupal/Component/Diff/Engine/DiffEngine.php
index 7885c6f00e..dadde4e51e 100644
--- a/core/lib/Drupal/Component/Diff/Engine/DiffEngine.php
+++ b/core/lib/Drupal/Component/Diff/Engine/DiffEngine.php
@@ -302,8 +302,7 @@ protected function _compareseq($xoff, $xlim, $yoff, $ylim) {
       //$nchunks = sqrt(min($xlim - $xoff, $ylim - $yoff) / 2.5);
       //$nchunks = max(2, min(8, (int)$nchunks));
       $nchunks = min(7, $xlim - $xoff, $ylim - $yoff) + 1;
-      list($lcs, $seps)
-      = $this->_diag($xoff, $xlim, $yoff, $ylim, $nchunks);
+      list($lcs, $seps) = $this->_diag($xoff, $xlim, $yoff, $ylim, $nchunks);
     }
 
     if ($lcs == 0) {
diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index a593e62c7d..8019e95910 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -69,6 +69,7 @@
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/ControlStructures/ControlSignatureSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Files/EndFileNewlineSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Files/TxtFileLineLengthSniff.php"/>
+  <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Formatting/MultiLineAssignmentSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Formatting/SpaceInlineIfSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Formatting/SpaceUnaryOperatorSniff.php"/>
   <rule ref="../vendor/drupal/coder/coder_sniffer/Drupal/Sniffs/Functions/DiscouragedFunctionsSniff.php"/>