lib/cache.js
function(arg) {
    var hash = crypto.createHash('md5')
            .update(JSON.stringify(arg))
            .digest('hex');
    return path.join(this.dir, hash);
  }
function(arg) {
    var hash = crypto.createHash('md5')
            .update(JSON.stringify(arg))
            .digest('hex');
    return path.join(this.dir, hash);
  }
function ( arg ) { var hash = crypto . createHash ( 'md5' ) . update ( JSON . stringify ( arg ) ) . digest ( 'hex' ) ; return path . join ( this . dir , hash ) ; }
Creates a md5 hash based on the stringified arg
Creates a md5 hash based on the stringified arg