Parameterized search paths for default keytab, ccache

[Greg Hudson]

On 07/19/2012 09:20 AM, Sam Hartman wrote:
> I think I could make if none of the ccaches exist return the first one
> work.

For the moment, I have punted search lists to a future project, and am
doing just parameterization.  Both at once was turning into too large of
a project.

If we get around to search lists, I am guessing it will be something
like this (first existing -> first in list).