In SPEC-1071 I updated the retryable write spec tests to use the failCommand fail point but only onPrimaryTransactionalWrite is documented in the test readme.

For example this section is no longer accurate:

After each test that configures a fail point, drivers should disable the
``onPrimaryTransactionalWrite`` fail point to avoid spurious failures in
subsequent tests. The fail point may be disabled like so::

    db.runCommand({
        configureFailPoint: "onPrimaryTransactionalWrite",
        mode: "off"
    });

Each test needs to disable the fail point that it set which could be "failCommand" or "onPrimaryTransactionalWrite".