Comment 7 for bug 1796407

@Robie: It's been a while since I dabbled with this, but to me this is not really "wishlist", it's an actual bug. Surely pg_wrapper doesn't document that it looks at the explicitly specified port, but it certainly ought to. This case was just plain forgotten.

So the patch certainly needs some massaging, at least:

 - adjust it to current version [1], which e. g. has $explicit_port instead of $port_specified
 - Fix the "locahost" typo, and support IP addresses as well (127.0.0.* or ::1)
 - Add an integration test to https://salsa.debian.org/postgresql/postgresql-common/blob/master/t/090_multicluster.t

but the general heading of it seems fine to me.

[1] https://salsa.debian.org/postgresql/postgresql-common/blob/master/pg_wrapper