__dirname is not defined

[bruceandroid]

After updating my project to Angular 8, this formatter always gives me an error saying that __dirname in the first three lines of render.js is not defined.
If you change these lines to:
var closing = require('./closing.js');
var entity = require('./entity.js');
var minify = require('./minify.js');
It works again! Is this the best solution and can you fix it?