minor #20364 CS: apply rules (keradus)

This PR was squashed before being merged into the 2.7 branch (closes #20364).

Discussion
----------

CS: apply rules

| Q | A |
| --- | --- |
| Branch? | 2.7 |
| Bug fix? | no |
| New feature? | no |
| BC breaks? | no |
| Deprecations? | no |
| Tests pass? | n/a |
| Fixed tickets | - |
| License | MIT |
| Doc PR | - |

Commits
-------

22d4e15 CS: apply rules

Author: nicolas-grekas

Tests/DateFormatter/IntlDateFormatterTest.php

@@ -222,7 +222,7 @@ protected function isIntlFailure($errorCode)
     private function notImplemented(array $dataSets)
     {
         return array_map(function ($row) {
-                return array($row[0], $row[1], 0);
-            }, $dataSets);
+            return array($row[0], $row[1], 0);
+        }, $dataSets);
     }
 }