t/src/manifest.t tests 3 and 4 used to compare MANIFEST file entries
against CVS/Entries. The latter is now .svn/entries with an xmlish syntax.
The job is now to replace t/src/manifest.t:scan_cvs so that it extracts
C<name> items from .svn/entries and descends into C<kind="dir">
subdirectories. And no - I don't think, we need a full-fledged XML
parser for this.