DOC-BUG: Use of non-RFC2119 language: STRONGLY ENCOURAGED

-protocol 2.1.6 says

   It is STRONGLY ENCOURAGED that published records remain small enough
   that query results will fit within 512 octets

STRONGLY ENCOURAGED is not defined by RFC2119.  I would suggest
RECOMMENDED (which has the same meaning as SHOULD)

Or alternatively, just write 'strongly encouraged' in lower case.

The sense of the two possibly corrections is slightly different; I
have no strong opinion as to which is better.

      -roy