[daisy] Recovering one document

[Thomas, Mark - BLS CTR]

Marc Portier wrote:
> $ find -type f | xargs grep -l
> "xmlns:d='http://outerx.org/daisy/1.0#navigationspec'"
> 
> all on one line,
> the result will be a list of documents in the blobstore that 
> are navigation-trees (normally not that much)

Thanks. In my case there were hundreds, but a few additional greps and
some diffs later, I was able to find what I needed.

- Mark.