patroni / patroni / 15700986862

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Fix potential issue around resolving localhost to IPv6 on Windows (#3380)

When specifying `0.0.0.0` or `127.0.0.1` in `listen_addresses`, Postgres won't listen on IPv6 (in other words, these addresses imply IPv4 only).  However, the typical Windows system will have a preference to resolve `localhost` to `::1`.

While one can change these preferences, it's unclear if it has unwanted side effects.  Instead of this, the proposed small change fixes this behavior.

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