Issue #3421206 by karanpagare, GafgarionMorua, smustgrave, joachim, longwave:...

Issue #3421206 by karanpagare, GafgarionMorua, smustgrave, joachim, longwave: incorrect docs for LocaleConfigSubscriberTest::assertTranslation()

(cherry picked from commit 21831766)

core/modules/locale/tests/src/Kernel/LocaleConfigSubscriberTest.php

@@ -458,7 +458,7 @@ protected function assertNoTranslation(string $config_name, string $langcode): v
   }
 
   /**
-   * Ensures a translation exists and is marked as customized.
+   * Asserts if a specific translation exists and its customization status.
    *
    * @param string $config_name
    *   The configuration name.
@@ -467,8 +467,7 @@ protected function assertNoTranslation(string $config_name, string $langcode): v
    * @param string $langcode
    *   The language code.
    * @param bool $customized
-   *   Whether or not the string should be asserted to be customized or not
-   *   customized.
+   *   (optional) Asserts if the translation is customized or not.
    *
    * @internal
    */