Synopsis: collate::compare doesn't handle nul characters.

Responsible-Changed-From-To: paolo->nobody
Responsible-Changed-By: paolo
Responsible-Changed-When: Mon Feb 24 13:37:34 2003
Responsible-Changed-Why:
    Pétur is working on a patch.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9817