styleProcessor: ext param is an array

[dherges]

First, this is a question:

styleProcessor: function (path, ext, file, callback) {/* ... */},

The param ext is an array since it comes from this regex

Is this intended?

Personally, I found this a bit counter-intuitive, since one file has one file extension - that's how path.basename() works.

If it's intended, I think it should be added to the docs / README.

[ludohenin]

No this is not intended. Would you please make a PR for the same ?