nex3/sass — pull request #379 by jeremy (2012-05-06 00:16:46+00:00)
Title: Ruby 2.0 support: check for private visitor methods

Visitor methods are private, so we should pass the second `include_private` arg to `#respond_to?`

`include_private` was true by default in Ruby 1.8 & 1.9; now it's false. So this is backward compatible.