initdb failure in CVS

I am seeing the following failure of initdb in CVS:

The files belonging to this database system will be owned by user "postgres".
This user must also own the server process.

The database cluster will be initialized with locale C.

creating directory /u/pg/data ... ok
creating directory /u/pg/data/global ... ok
creating directory /u/pg/data/pg_xlog ... ok
creating directory /u/pg/data/pg_clog ... ok
creating directory /u/pg/data/base ... ok
creating directory /u/pg/data/base/1 ... ok
selecting default max_connections ... 100
selecting default shared_buffers ... 1000
creating configuration files ... ok

creating template1 database in /u/pg/data/base/1 ...

FATAL: invalid value for parameter "client_encoding": ""

initdb: child process exited with exit code 1
initdb: failed
initdb: removing data directory "/u/pg/data"

The problem seems to be related to a commit made to initdb a few days
ago.

revision 1.24
date: 2004/05/05 16:09:31; author: tgl; state: Exp; lines: +23 -2
Use a more portable technique for unsetting environment variables,
and unset PGCLIENTENCODING to prevent backend from dying if it's set
to something incompatible with the -E option.

I don't have any encoding set in my system.

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