pgsql: doc: Improve example query related to pg_wait_events

doc: Improve example query related to pg_wait_events

Author: Pavel Luzanov
Discussion: /messages/by-id/4f79be75-7e30-4817-b0da-4a691ea5427f@postgrespro.ru

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/befe9451fbf5a4b49e80f17917d8c6d8b5edad26

Modified Files
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doc/src/sgml/monitoring.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)