Refactoring - wp-core

Replaced $is_multisite with is_multisite()

Author: apermo

src/wp-admin/includes/class-wp-debug-data.php

@@ -872,7 +872,6 @@ public static function get_wp_core(): array {
 		// Save few function calls.
 		$permalink_structure    = get_option( 'permalink_structure' );
 		$is_ssl                 = is_ssl();
-		$is_multisite           = is_multisite();
 		$users_can_register     = get_option( 'users_can_register' );
 		$blog_public            = get_option( 'blog_public' );
 		$default_comment_status = get_option( 'default_comment_status' );
@@ -932,8 +931,8 @@ public static function get_wp_core(): array {
 			),
 			'multisite'              => array(
 				'label' => __( 'Is this a multisite?' ),
-				'value' => $is_multisite ? __( 'Yes' ) : __( 'No' ),
-				'debug' => $is_multisite,
+				'value' => is_multisite() ? __( 'Yes' ) : __( 'No' ),
+				'debug' => is_multisite(),
 			),
 			'user_registration'      => array(
 				'label' => __( 'Can anyone register on this site?' ),