@Nonnull
        @Override
        public FileVisitResult visitFile(final Path file, @Nonnull final BasicFileAttributes attrs) {
            checkPath(file);
            return FileVisitResult.CONTINUE;
        }
Constructor.

@param root            Root of the thing we're searching. Used to make paths relative.
@param pathsFound      Map of patterns and whether they've been found
@param pathsNotMatched List of paths we've found that weren't matched.
stroom-app/src/test/java/stroom/importexport/TestImportExportGitRepo.java