Script Loader: Add missing escaping function to Moment.js string lo…

…calization.

This changeset avoids breaking the inline script added for `Moment.js` localization if for some reason `get_user_locale()` doesn't return a simply string.

Props swissspidy.
Fixes #61341.




git-svn-id: https://develop.svn.wordpress.org/trunk@58288 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/script-loader.php

@@ -144,7 +144,7 @@ function wp_default_packages_vendor( $scripts ) {
 		'moment',
 		sprintf(
 			"moment.updateLocale( '%s', %s );",
-			get_user_locale(),
+			esc_js( get_user_locale() ),
 			wp_json_encode(
 				array(
 					'months'         => array_values( $wp_locale->month ),