ietf-nntp Wrong return code in example in 9.2.2.2

[Russ Allbery]

9.2.2.2, the section of examples for HEAD, has two examples:

            Example of a successful retrieval of the headers in an article 
            (using no article number) 
                    [S] 200 NNTP Service Ready 
                    [C] GROUP misc.test 
                    [S] 211 1234 3000234 3002322 misc.test 
                    [C] HEAD 
                    [S] 220 3000234 <45223423 at to.to>
[...]

            Example of a successful retrieval of the headers in an article 
            by message-id 
                    [S] 200 NNTP Service Ready 
                    [C] HEAD <45223423 at to.to> 
                    [S] 220 0 <45223423 at to.to>
[...]

In both cases, the reply code for the HEAD command should be 221, not 220.
(220 is the return code for the ARTICLE command.)

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>