code: function ( path, base )
  { let start = path.substr ( 0, 2 )
    let paths
    if ( start != './' && start != '..' )
    { // absolute or funky node_modules require
      paths = module.paths
    }
    else
    { paths =  [ base ]
    }
    let filename = findPath ( path, paths )
    if ( !filename )
    { throw new Error ( `Cannot find path '${ path }'` )
    }
    return filename
  }
docs: Used by require