pgsql: Change coding pattern for CURL_IGNORE_DEPRECATION()

Change coding pattern for CURL_IGNORE_DEPRECATION()

Instead of having to write a semicolon inside the macro argument, we can
insert a semicolon with another macro layer. This no longer gives
pg_bsd_indent indigestion, so we can remove the digestive aids that had
to be installed in the pgindent Perl script.

Author: Álvaro Herrera <alvherre(at)kurilemu(dot)de>
Reviewed-by: Andrew Dunstan <andrew(at)dunslane(dot)net>
Reviewed-by: Daniel Gustafsson <daniel(at)yesql(dot)se>
Reviewed-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/202511111134.njrwf5w5nbjm@alvherre.pgsql
Backpatch-through: 18

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/3a438e44d96942036f98c28dcae173c63f00c2c1

Modified Files
--------------
src/interfaces/libpq-oauth/oauth-curl.c | 13 +++++++++----
src/tools/pgindent/pgindent | 14 --------------
2 files changed, 9 insertions(+), 18 deletions(-)