Bug#648148: autopkgtest: Support running as user

[Ian Jackson]

Martin Pitt writes ("Bug#648148: autopkgtest: Support running as user"):
> Jakub Wilk [2012-06-12 16:44 +0200]:
> > >- Change the spec to deprecate use of TMPDIR.
> > >- Change the manpages not to refer to TMPDIR any more.
> > >
> > >What do you think ?
> > 
> > I second the idea of deprecating TMPDIR and introducing another
> > variable for this purpose.
> 
> I also second this ("thirded"? :-) ).

I'm going to provide, and document that we provide, ADTTMP.

I would still like to provide TMPDIR for the build scripts but it
ought to have the right permissions.  I will sort this out.

Ian.