pgsql: Fix error message when a hostaddr cannot be parsed.

Fix error message when a hostaddr cannot be parsed.

We were incorrectly passing hostname, not hostaddr, in the error message,
and because of that, you got:

$ psql 'hostaddr=foo'
psql: could not parse network address "(null)": Name or service not known

Backpatch to v10, where this was broken (by commit 7b02ba62e9).

Report and fix by Robert Haas.

Discussion: https://www.postgresql.org/message-id/CA+TgmoapFQA30NomGKEaZCu3iN7mF7fux8fbbk9SouVOT2JP7w@mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b90d97e081415768468295cc4d10d7ee21881964

Modified Files
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src/interfaces/libpq/fe-connect.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)