This was suggested in
https://www.postgresql.org/message-id/11766.1545942853%40sss.pgh.pa.us
I also adjusted usage() to match. There might be other scripts that
could use this treatment, but I figure this is a good start.
--
John Naylor https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services