Bugfix for #722

[corgrath]

Hey. This is a pull request to solve issue #722

I know there is a setup you need to do, that includes Python, but since I have no Python experience at all, I had problems setting the test environment up. But I saw that Travis-ci, so hopefully that can help with testing. If not, is there a chance any main developers can help verify that this fix doesn't break anything?

[corgrath]

The problem is that I haven't added any new test cases to ensure this change will preserve. Is this something you can help me with?

This could be a test case:

.mixin( {
background:
red;
}
)
;

Should become

.mixin( {
    background: red;
} );

[bitwiseman]

Please look at https://github.com/beautify-web/js-beautify/blob/master/test/data/css.js. Add you test using that json, then run make. This will generate tests for python and javascript.

[corgrath]

I am closing this.

I cannot build the project, as I am getting problems running make in windows.

Perhaps someone else in the future has the time to create the necessary tests.

[bitwiseman]

@corgrath - What problems are you getting building in windows?