Regression test geometry.out may have wrong value.

Folks,

I built and ran the Postgres 8.0.0 beta 2 on MacOS 10.3.5 and got a
strange failure on the geometry tests. It appears as if the result
(-0,0) is expected (expected/geometry.out), which does not make much
sense, the actual value was (0,0) as expected.

The actual regression.diff is attached. Bottom line is the code looks
correct, but the expected test results looks incorrect.

Thanks,

John Kelly