Proposal: When possible, give more useful exceptions from rawSystem and friends

[Ian Lynagh]

Hi Niklas,

On Mon, Apr 29, 2013 at 08:23:52AM +0800, Niklas Hambüchen wrote:
> 
> does your patch only apply to rawSystem or would it also improve
> scenarios with createProcess involved like the following?
> 
> http://www.haskell.org/pipermail/haskell-cafe/2012-August/102824.html

It would work for createProcess too (well, you actually get the error
when you waitForProcess on the ProcessHandle that createProcess
returns).


Thanks
Ian
-- 
Ian Lynagh, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/