Instead of 'autotests/export/doc/' export tests are prefixed
with 'export/doc/'. This has the advantage of the name better
reflecting the test (export tests are not autotests), but has a
disadvantage in that the old name gave a better idea of where the
export test scripts are located (in the autotests directory).
This file documents which tests are expected to fail. It can be used
to quickly tell if a regression has occurred. This is also useful when
first running tests to get an idea of whether some tests are failing
because of missing dependencies.