index.js
function canInclude(entry, opts) {
  if (!opts.include || !opts.include.length) return true;
  return !entry.isDirectory();
}
function canInclude(entry, opts) {
  if (!opts.include || !opts.include.length) return true;
  return !entry.isDirectory();
}
function canInclude ( entry , opts ) { if ( ! opts . include || ! opts . include . length ) return true ; return ! entry . isDirectory ( ) ; }
when a include pattern is specified, stop yielding directories
when a include pattern is specified stop yielding directories