Not passing 'preserve_newlines' args through to Prettydiff for LESS/SCSS formatting

[sebastiankade]

When specifying the preserve_newlines in .jsbeautifyrc they do not get passed through to prettydiff, see:
https://github.com/Glavin001/atom-beautify/blob/master/lib/langs/css-prettydiff-beautify.coffee#L4-L10

Originally raised here:
#211 (comment)

[Glavin001]

Looks like preserve_newlines is not even supported on CSS (yet): beautifier/js-beautify#537

I'm working on Prettydiff support now.

[Glavin001]

The only property I see is preserve ( see 31 in http://prettydiff.com/documentation.php#function_properties ). Is that the preserve_newlines you are looking for?

Retain empty lines in either JavaScript or CSS like languages. Consecutive empty lines will be converted to a single empty line.

[Glavin001]

Published to v0.22.5

Atom Beautify uses a boolean (true or false) value for preserve_newlines option and will translate to all in Prettydiff. Support is only for LESS/SCSS/SASS (Prettydiff supported languages).

Thank you for your patients.

[sebastiankade]

Thanks so much!