code: function addContentsDirectoryToReaddirResultAndCallOriginalCallback(err, entryNames) {
                                  if (!err && Array.isArray(entryNames)) {
                                      entryNames = ['gitFakeFs'].concat(entryNames);
                                  }
                                  cb.call(this, err, entryNames);
                              }
docs: Intercept the result and add the 'gitFakeFs' dir