Question on initdb and subsequent start

I just installed 7.3.2 version of Postgres on Mac OS X 10.2.4.

I want to keep my database cluster in a non-default location, specifically,
inside the Shared folder in /Users.

I ran initdb with the following command (as the postgres user)

/usr/local/bin/initdb -D /Users/Shared/pgdata

And it created the pgdata folder correctly and the messages showed that the
cluster was properly initialized.

Subsequently, when I run start with the following command:

/usr/local/bin/pg_ctl -D /Users/Shared/pgdata start

I get the following message:

FATAL: invalid value for option 'LC_TIME': 'en'

Any help would be appreciated.

Thanks,

Manoj Patwardhan