-U option in psql

Hi,

In 8.3.0 (windows installation) if I execute this command i get an
error while in 8.2 i get a psql command prompt, is this a change in
behaviour or a bug?

H:\Archivos de programa\PostgreSQL\8.3\bin>psql template1 -U postgres
psql: warning: extra command-line argument "postgres" ignored
Password for user -U:
psql: fe_sendauth: no password supplied

-- 
regards,
Jaime Casanova

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs and the universe trying
to produce bigger and better idiots.
So far, the universe is winning."                                      Richard Cook