sass/libsass — pull request #531 by xzyfer (2014-10-12 14:52:04+00:00)
Title: Don't output declarations with null values

This PR stops libsass outputting declarations where the value is null.

Fixes #113. Specs added https://github.com/sass/sass-spec/pull/87.

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This conceptually feels like the right way to solve this issue, but it might not the most correct. Specs pass so I assume nothing is broken.