fix the top-level directory path of imported CVS modules
CVS modules were imported with the a top-level directory which matched the module name. For a CVS origin such as rsync://cvs.savannah.gnu.org/sources/dino/dino the top-level directory contained a single directory called "dino" with all expected files and directories residing inside this directory. E.g. the dino project's top-level README file would be stored at the path "dino/README" instead of just "/README".
Import project files directly into the top-level directory, as expected. Adjust test expectations accordingly.
Migrated from D6781 (view on Phabricator)