index.js
function pushTo(array) {
	return map(function (file, cb) {
		array.push(file);
		cb(null, file);
	});
}
function pushTo(array) {
	return map(function (file, cb) {
		array.push(file);
		cb(null, file);
	});
}
function pushTo ( array ) { return map ( function ( file , cb ) { array . push ( file ) ; cb ( null , file ) ; } ) ; }
pushes files from pipe to array
pushes files from pipe to array