pg_dump tests: don't put dumps in stdout
This bloats the regression log files for no reason.
Backpatch to 18; no further only because it fails to apply cleanly.
(It's just whitespace change that conflicts, but I don't think this
warrants more effort than this.)
Discussion: https://postgr.es/m/202511251218.zfs4nu2qnh2m@alvherre.pgsql
Branch
------
REL_18_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/0e4b1af78d7c10baebbdcace9a37c9e304708bc1
Modified Files
--------------
src/bin/pg_dump/t/002_pg_dump.pl | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)