Windows validate failure

[Herbert Valerio Riedel]

On 2013-09-22 at 15:59:01 +0200, Simon Peyton-Jones wrote:
> My latest Windows validate  fell over as below, with some kind of
> Python failure (ie not just a failing test).  It worked fine couple of
> days ago.  Does anyone have any ideas of what might be going on?

Seems to be caused by this:

https://github.com/ghc/testsuite/commit/36a70ba030b86fb5db923b60dde852287291dba2#L3R824

(alas, I can't fix it right now myself)