[Dbix-class] install test failures

[Dave Howorth]

Peter Rabbitson wrote:
> If we add the /s this will mean that a full stack trace incluyding
> DBIC will be accepted, which is not good.

OK. I haven't tried to understand what the test is doing, so I didn't
know whether it cared about extra trace info.

> I will try with 5.8 and let you know what happens. What perl do you
> have?

Oops. Yes, it's perl 5.8.6.

Cheers, Dave