citex regression fails with de.UTF8 locale

I setup more locale testing on gothic moth and citext regression test
fails.

See
http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=gothic_moth&dt=2009-04-22%2020:06:01

Problem is here:

---------------------------------------------------
SELECT citext_cmp('B'::citext, 'a'::citext) AS one;
one
-----
! 1
(1 row)

-- Do some tests using a table and index.
--- 216,222 ----
SELECT citext_cmp('B'::citext, 'a'::citext) AS one;
one
-----
! 28
(1 row)

-- Do some tests using a table and index.
---------------------------------------------------

It seems to me that citex_cmp can return any integer value. It depends
what wcscoll() returns. I think it should be changed to:

SELECT citext_cmp('B'::citext, 'a'::citext) > 0 AS one;

Zdenek