pgsql: vacuumdb: Fix comment for vacuum_one_database().

vacuumdb: Fix comment for vacuum_one_database().

Since commit e0c2933a76, vacuum_one_database() always uses a
catalog query to discover the tables to process, but this comment
still notes the special case for which we used a catalog query
before that commit. Let's just remove that note.

Also, commit 7781f4e3e7 renamed the "tables" parameter to "objects"
but missed updating this comment. This commit fixes that as well.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/6a9b2a631aa3dbac5b351cd0c45631cbc6e8d19e

Modified Files
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src/bin/scripts/vacuumdb.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)