Site Health: Fix incorrect message about the status of WP_AUTO_UPDATE_CORE.

Previously, the Site Health message said "The WP_AUTO_UPDATE_CORE constant is defined and enabled" when in fact the constant was defined and disabled using `define( 'WP_AUTO_UPDATE_CORE', false );`.

This changeset improves the message by providing the value of the constant. For example: "The WP_AUTO_UPDATE_CORE constant is defined as false".

Props johnbillion, chrisbudd1, robinwpdeveloper, audrasjb, Clorith.
Fixes #51041.


git-svn-id: https://develop.svn.wordpress.org/trunk@54325 602fd350-edb4-49c9-b593-d223f7449a82

Author: audrasjb

src/wp-admin/includes/class-wp-site-health-auto-updates.php

@@ -74,9 +74,10 @@ public function test_constants( $constant, $value ) {
 		if ( defined( $constant ) && ! in_array( constant( $constant ), $acceptable_values, true ) ) {
 			return array(
 				'description' => sprintf(
-					/* translators: %s: Name of the constant used. */
-					__( 'The %s constant is defined and enabled.' ),
-					"<code>$constant</code>"
+					/* translators: 1: Name of the constant used. 2: Value of the constant used. */
+					__( 'The %1$s constant is defined as %2$s' ),
+					"<code>$constant</code>",
+					'<code>' . esc_html( var_export( constant( $constant ), true ) ) . '</code>'
 				),
 				'severity'    => 'fail',
 			);