[patch] Help information for pg_dump

Hi all

After executing command [pg_dump -?], some help information is as follows.

pg_dump -?
-----------------------------------------------------------------
-N, --exclude-schema=PATTERN do NOT dump the specified schema(s) ※
-T, --exclude-table=PATTERN do NOT dump the specified table(s) ※
-x, --no-privileges do not dump privileges (grant/revoke)
--exclude-table-data=PATTERN do NOT dump data for the specified table(s) ※
--no-comments do not dump comments
--no-publications do not dump publications
--no-security-labels do not dump security label assignments
--no-subscriptions do not dump subscriptions
--no-synchronized-snapshots do not use synchronized snapshots in parallel jobs
--no-tablespaces do not dump tablespace assignments
--no-unlogged-table-data do not dump unlogged table data
--------------------------------------------------------------------

I think it would be better to change [do NOT dump] to [do not dump].

Here is a patch.

Best Regards!