[Pkg-postgresql-public] Bug#728599: point pg_isready to latest version

[Peter Eisentraut]

Package: postgresql-common
Version: 150
Severity: wishlist

pg_isready should always be pointed to the latest version, same as
psql is handled now.  pg_isready does not depend on the server
version.  Also, since it is new in 9.3, running it against an older
version sometimes gets complaints from pg_wrapper about the client not
existing for old versions, which is confusing.