Ticket #46855: 46855.patch

src/wp-admin/ms-delete-site.php

@@ -78 +78 @@
         $content = str_replace( '###URL_DELETE###', $url_delete, $content );
         $content = str_replace( '###SITE_NAME###', get_network()->site_name, $content );
 
-        wp_mail( get_option( 'admin_email' ), '[ ' . wp_specialchars_decode( get_option( 'blogname' ) ) . ' ] ' . __( 'Delete My Site' ), $content );
+        /* translators: 1: site name, 2: email subject */
+        wp_mail( get_option( 'admin_email' ), sprintf( '[%1$s] %2$s',  wp_specialchars_decode( get_option( 'blogname' ) ), __( 'Delete My Site' ) ), $content );
 
         if ( $switched_locale ) {
                 restore_previous_locale();