pgsql: doc: Match built-in function parameter names to their SQL names

doc: Match built-in function parameter names to their SQL names

Several documented function signatures used parameter names that
differed from the registered SQL names, causing named-argument calls
using the documented names to fail. Update the signatures and
corresponding descriptions to use the SQL-visible names, without
affecting existing calls.

Backpatch to all supported versions, except for the changes to
pg_logical_emit_message and pg_input_error_info, which are
backpatched through v17 and v16, respectively.

Reported-by: Mi cro <micro6947(at)gmail(dot)com>
Author: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Discussion: https://postgr.es/m/19D9D4CB-8C31-493E-982A-1E17042D68C5%40gmail.com
Backpatch-through: 14

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/2af6dd3370677d8b06cf2a9eb62f69ba11e12cab

Modified Files
--------------
doc/src/sgml/func/func-admin.sgml | 6 +++---
doc/src/sgml/func/func-datetime.sgml | 4 ++--
doc/src/sgml/func/func-info.sgml | 6 +++---
doc/src/sgml/func/func-json.sgml | 26 +++++++++++++-------------
doc/src/sgml/func/func-string.sgml | 8 ++++----
doc/src/sgml/func/func-textsearch.sgml | 12 ++++++------
doc/src/sgml/func/func-xml.sgml | 8 ++++----
doc/src/sgml/textsearch.sgml | 10 +++++-----
8 files changed, 40 insertions(+), 40 deletions(-)