cvsup4.us.freebsd.org gives invalid greeting

[Randy Bush]

> I posted to the list a week ago with the same - it seems that cvsup4
> is fine over IPv4 but socat or whatever other proxy sits in front of
> it for v6 functionality is not exactly functioning properly.
>> # csup -g -s -L 2 cvs-supfile 2>&1 | tee cvsup.log
>> Parsing supfile "cvs-supfile"
>> Connecting to cvsup4.us.freebsd.org
>> Connected to 2001:4f8:0:2::e
>> Invalid greeting from server

then the AAAA should be removed

randy