Index: src/wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- src/wp-includes/class-wp-xmlrpc-server.php	(revision 33814)
+++ src/wp-includes/class-wp-xmlrpc-server.php	(working copy)
@@ -1577,7 +1577,7 @@
 			return new IXR_Error( 404, __( 'Invalid post ID.' ) );
 
 		if ( ! current_user_can( 'delete_post', $post_id ) )
-			return new IXR_Error( 401, __( 'Sorry, you are not allowed to delete this post.' ) );
+			return new IXR_Error( 401, __( 'Sorry, you do not have the right to delete this post.' ) );
 
 		$result = wp_delete_post( $post_id );
 
@@ -4640,7 +4640,7 @@
 		$result = wp_delete_post($post_ID);
 
 		if ( !$result )
-			return new IXR_Error(500, __('For some strange yet very annoying reason, this post could not be deleted.'));
+			return new IXR_Error( 500, __( 'The post cannot be deleted.' ) );
 
 		/**
 		 * Fires after a post has been successfully deleted via the XML-RPC Blogger API.