pgsql: pg_restore: Fix wrong descriptions of --with-{schema,data,statis

pg_restore: Fix wrong descriptions of --with-{schema,data,statistics} options.

Commit bde2fb797aa added the --with-schema, --with-data, and --with-statistics
options to pg_restore. These options control whether to restore schema, data,
or statistics if present in the archive. However, the help message and
documentation incorrectly described them as affecting what gets dumped.

This commit corrects those descriptions to clarify that the options control
restoration, not dumping.

Bug: #18952
Reported-by: TAKATSUKA Haruka <harukat(at)sraoss(dot)co(dot)jp>
Author: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Reviewed-by: TAKATSUKA Haruka <harukat(at)sraoss(dot)co(dot)jp>
Reviewed-by: Daniel Gustafsson <daniel(at)yesql(dot)se>
Discussion: https://postgr.es/m/18952-be40a620f8b1e755@postgresql.org

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/84914e964b447a63c5208ca2ec11ec3abfda0879

Modified Files
--------------
doc/src/sgml/ref/pg_restore.sgml | 9 ++++++---
src/bin/pg_dump/pg_restore.c | 6 +++---
2 files changed, 9 insertions(+), 6 deletions(-)