6f9192df61
This removes an overloading of two authentication options where one is very secure (peer) and one is often insecure (ident). Peer is also the name used in libpq from 9.1 to specify the same type of authentication. Also make initdb select peer for local connections when ident is chosen, and ident for TCP connections when peer is chosen. ident keyword in pg_hba.conf is still accepted and maps to peer authentication.
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