Further fix psql query-cancel test.
authorTom Lane <tgl@sss.pgh.pa.us>
Mon, 6 Sep 2021 20:14:49 +0000 (16:14 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Mon, 6 Sep 2021 20:14:57 +0000 (16:14 -0400)
commitbd5846e4a9c1338ded5efcef53511f0d71f53f0e
tree9266d30d197a6b5bb521485a547f0182b2b9e014
parent8670b9b999adb66e2e063225496962763c4c28de
Further fix psql query-cancel test.

The query to wait for pg_sleep to be running did no such thing,
because the regex pattern it used could match itself.

Report: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=conchuela&dt=2021-09-06%2018%3A00%3A20
src/bin/psql/t/020_cancel.pl