pgsql: doc: Improve description of pg_restore --jobs

doc: Improve description of pg_restore --jobs

The parameter name used for the option value was named "number-of-jobs",
which was inconsistent with what all the other tools with an option
called --jobs use. This commit updates the parameter name to "njobs".

Author: Tatsuro Yamada <yamatattsu@gmail.com>
Discussion: /messages/by-id/CAOKkKFvHqA6Tny0RKkezWVfVV91nPJyj4OGtMi3C1RznDVXqrg@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/540c39cc56f51b27bff9a6fc78d6524564953c6c

Modified Files
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doc/src/sgml/ref/pg_restore.sgml | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)