doc: Update RFC URLs

Peter Eisentraut <peter_e@gmx.net>

Commit: ca49d69b7c8f04c495ce39ff4460e017656db901
Author: Peter Eisentraut <peter_e@gmx.net>
Date: 2017-08-17T15:47:43Z
Releases: 10.0
doc: Update RFC URLs

Consistently use the IETF HTML links instead of a random mix of
different sites and formats.  Correct one RFC number and fix one broken
link.

Files

PathChange+/−
doc/src/sgml/client-auth.sgml modified +1 −1
doc/src/sgml/json.sgml modified +1 −1
doc/src/sgml/libpq.sgml modified +1 −1
doc/src/sgml/pgcrypto.sgml modified +3 −3

Documentation touched