Networks and Sites: Pass the `$blog_id` parameter to the `newblog_notify_siteadmin` filter.

Props mukto90, virgodesign.
Fixes #48554.
Built from https://develop.svn.wordpress.org/trunk@46697


git-svn-id: http://core.svn.wordpress.org/trunk@46497 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/ms-functions.php

@@ -1422,10 +1422,12 @@ Disable these notifications: %4$s'
 	 * to the network administrator.
 	 *
 	 * @since MU (3.0.0)
+	 * @since 5.4.0 The `$blog_id` parameter was added.
 	 *
 	 * @param string $msg     Email body.
+	 * @param int    $blog_id The new site's ID.
 	 */
-	$msg = apply_filters( 'newblog_notify_siteadmin', $msg );
+	$msg = apply_filters( 'newblog_notify_siteadmin', $msg, $blog_id );
 
 	/* translators: New site notification email subject. %s: New site URL. */
 	wp_mail( $email, sprintf( __( 'New Site Registration: %s' ), $siteurl ), $msg );

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-46696';
+$wp_version = '5.4-alpha-46697';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.