pgsql: pg_dump: reject combination of "only" and "with"

pg_dump: reject combination of "only" and "with"

Reviewed-by: Álvaro Herrera <alvherre@kurilemu.de>
Discussion: https://postgr.es/m/8ce896d1a05040905cc1a3afbc04e94d8e95669a.camel@j-davis.com
Backpatch-through: 18

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/0ed92cf50cc428dad1732a5e604e5450d47acba3

Modified Files
--------------
src/bin/pg_dump/pg_dump.c        | 19 ++++++++++++++-----
src/bin/pg_dump/pg_restore.c     | 19 ++++++++++++++-----
src/bin/pg_dump/t/002_pg_dump.pl | 18 +++++++++++-------
3 files changed, 39 insertions(+), 17 deletions(-)