interactive shell in chroot patch

[seth vidal]

On Thu, 2006-05-11 at 12:12 -0500, Clark Williams wrote:
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> While we're in patch-a-thon mode, thought I'd submit this for comment.
> 
> While attempting to track down a bizarre bug with elinks, I hacked
> mock so that I could get an interactive shell in the chroot
> environment. Not useful for everyone, but handy if you want to look at
> the environment in which something is failing. Oh and I converted some
> prints in my chroot command to use the debug method.
> 

check it in.

-sv