Uncaught SyntaxError: Unexpected token (

[albertosantini]

Since 0.4.5 included (so also 0.4.6) I get the error message in the title, when I try to minimize a bundle created with rollup. With 0.4.4 it is ok.

Steps to reproduce the issue:

• clone the repo https://github.com/albertosantini/argo
• change butternut version in package.json (now fixed to 0.4.4)
• $ npm install
• $ npm run rollup-d3
• $ npm test

...
> argo-trading@5.0.2 karma C:\My\Dev\argo-trading\argo
> karma start --single-run

15 07 2017 10:31:13.392:INFO [karma]: Karma v1.7.0 server started at http://0.0.0.0:9876/
15 07 2017 10:31:13.408:INFO [launcher]: Launching browser Chrome with unlimited concurrency
15 07 2017 10:31:13.408:INFO [launcher]: Starting browser Chrome
15 07 2017 10:31:15.143:INFO [Chrome 59.0.3071 (Windows 10 0.0.0)]: Connected on socket BAo4auD6DJ0732uvAAAA wi
th id 25387013
Chrome 59.0.3071 (Windows 10 0.0.0) ERROR
  Uncaught SyntaxError: Unexpected token (
  at build/d3-techan.min.js:1

(Using the unminified version of the file, the tests pass).

[nifgraup]

Notice that there is already an error during the npm run rollup-d3 step. Duplicate of #172, can not reproduce on master.

[albertosantini]

I would say it is fixed with the latest versions.
Thanks for the effort.