Improved crawling speed, also cleaned up the output.

So the speed of the script is much faster than before, though it
actually still has much room for improvement, it will just be more
complicated.  Calling 'p4 fstat' on the entire directory will give you
everything you need up front, it's just they're in depot paths, which
makes thing a little annoying to parse when you have workspace mappings
that move things around so the local path may differ from the depot
path, and it becomes harder to determine 100% that you're referring to
the same file.  And I don't want to have to call p4 on every file to be
sure of that, what I'm doing now is the easiest safest way to be sure of
that, as far as I know.

Another way to speed this up is to add thread crawlers, I'm just not yet
sure with HDDs and SSDs how many threads is a good idea to use.
Fixed a bug from old code so the script would work, tweaked output.

I was trying to use `p4 have` for speed, but it doesn't seem to work
with files that are added to a changelist but not to a repo.  So I had
to resort back to `p4 fstat`.