message: node: fix tests to match new output delimiters
diff: @@ -15,8 +15,8 @@ describe('require hook', () => {
  it('should work on .st.css', () => {
  attachHook();
  const m = require('./fixtures/test.st.css');
  - expect(m.classes.root).to.equal(m.namespace + '--root');
  - expect(m.classes.test).to.equal(m.namespace + '--test');
  + expect(m.classes.root).to.equal(m.namespace + '__root');
  + expect(m.classes.test).to.equal(m.namespace + '__test');
  });
  it('should only catch .st.css files by default', () => {
  