content_transfer_encoding.treetop in mail-2.2.0

- old
+ new

@@ -11,10 +11,10 @@
     rule encoding
       ietf_token "s"? {
         def text_value
           ietf_token.text_value
         end
-      } / x_token
+      } / custom_x_token
     end
     
   end
 end
\ No newline at end of file