Multiline custom properties stay multiline in compressed mode

[ffoodd]

Hi there,

While working on #30 in Chaarts I came across an issue when minifying output: custom properties which content is multiline aren't minified.

I made a dedicated Sassmeister.

After playing things around, it seems it's related to LibSass (not quite sure about node-sass directly, but that was what I used).

The exact same code minifies as intended with Dart Sass.

[xzyfer]

That's for the report. No semantic output differences like white spaces, and new lines are very low priority.

We recommend not relying on compressed output and instead using a dedicated case minifier for best results.