Index: src/wp-admin/includes/class-wp-debug-data.php
===================================================================
--- src/wp-admin/includes/class-wp-debug-data.php	(revision a511415d0a9691efe2bd3d519de9f39bd2e9f491)
+++ src/wp-admin/includes/class-wp-debug-data.php	(date 1554491743509)
@@ -902,7 +902,7 @@
 	 * @return string The formatted data.
 	 */
 	public static function format( $info_array, $type = 'text' ) {
-		$return = '';
+		$return = "`\n";
 
 		foreach ( $info_array as $section => $details ) {
 			// Skip this section if there are no fields, or the section has been declared as private.
@@ -943,6 +943,8 @@
 			$return .= "\n";
 		}
 
+		$return .= "`";
+
 		return $return;
 	}