docs: function processSimple( names, current, stopAt, collector, done ) {
  	const name = names[current];
  
  	File.stat( Path.join( "node_modules", name, "hitchy.json" ), ( error, stat ) => {
  		if ( error ) {
  			if ( error.code === "ENOENT" ) {
  				collector.push( name );
  			} else {
  				done( error );
  				return;
  			}
  		} else if ( stat.isFile() ) {
  			if ( !quiet ) {
  				console.error( `${name} ... found` );
  			}
  		} else {
  			done( new Error( `dependency ${name}: not a folder` ) );
  			return;
  		}
  
  		if ( ++current < stopAt ) {
  			processSimple( names, current, stopAt, collector, done );
  		} else {
  			done( null, collector );
  		}
  	} );
  }