Index: wp-includes/IXR/class-IXR-message.php
===================================================================
--- wp-includes/IXR/class-IXR-message.php	(revision 44861)
+++ wp-includes/IXR/class-IXR-message.php	(working copy)
@@ -101,7 +101,7 @@
         $chunk_size = 262144;
 
         /**
-         * Filters the chunk size that can be used to parse an XML-RPC reponse message.
+         * Filters the chunk size that can be used to parse an XML-RPC response message.
          *
          * @since 4.4.0
          *