[patch] new exec-charset testcase

[Eric Christopher]

> Jason approved this in private, after some cosmetic changes.  Here's
> the patch I'm checking in.  Bootstrapped again on i686-pc-linux-gnu,
> just in case.
> 

Check in the testcase please since I'm almost positive I didn't because
it would have just immediately failed.

-eric
> 
> ______________________________________________________________________
-- 
Eric Christopher <echristo@redhat.com>