Comment in electron-builder.json5 blows install/build up

[black-snow]

• Version: 17.8, 17.10.0

• Target: appx

Having comments in .json5 should be fine but even npm install fails when I have a comment in my electron-builder.json5.

 install-app-deps
 
YAMLException: missed comma between flow collection entries at line 22, column 3:
      // }
      ^
    at generateError (xyz\node_modules\electron-builder\node_modules\js-yaml\lib\js-yaml\loader.js:162:10)

Building fails as well.

[black-snow]

@develar We can't use js-yaml for that, do we? json5 comments are javascript-style comments, i. e. // or /**/ whereas yaml comments are #. yaml supports json (no comments at all) but does not support json5.

I'll see if I can file a PR fixing this.

// edit: PR here: #1578

[develar]

18.0.0 released, thanks for PR.