Log Message:
Update ruby-sass to 3.2.10.

3.2.10

* Use the Sass logger infrastructure for @debug directives.
* When printing a Sass error into a CSS comment, escape */ so the comment
  doesn¡Çt end prematurely.
* Preserve the ! in /*! ... */-style comments.
* Fix a bug where selectors were being incorrectly trimmed when using @extend.
* Fix a bug where sass --unix-newlines and sass-convert --in-place are not
  working on Windows (thanks SATO Kentaro).

3.2.9

* Fix a bug where @extends would occasionally cause a selector to be generated
  with the incorrect specificity.
* Avoid loading listen v1.0, even if it¡Çs installed as a Gem (see issue 719).
* Update the bundled version of listen to 0.7.3.
* Automatically avoid the IE7 content: counter bug.

3.2.8

* Fix some edge cases where redundant selectors were emitted when using @extend.
* Fix a bug where comma-separated lists with interpolation could lose elements.
* Fix a bug in sass-convert where lists being passed as arguments to functions
  or mixins would lose their surrounding parentheses.
* Fix a bug in sass-convert where null wasn¡Çt being converted correctly.
* Fix a bug where multiple spaces in a string literal would sometimes be
  folded together.
* sass and sass-convert won¡Çt create an empty file before writing to it. This
  fixes a flash of unstyled content when using LiveReload and similar tools.
* Fix a case where a corrupted cache could produce fatal errors on some
  versions of Ruby.
* Fix a case where a mixin loop error would be incorrectly reported when using
  @content.