Index: lib/sass/engine.rb
===================================================================
--- lib/sass/engine.rb	(revision 577)
+++ lib/sass/engine.rb	(working copy)
@@ -67,6 +67,7 @@
         :style => :nested,
         :load_paths => ['.']
       }.merge! options
+      template = template.gsub(/,\n\r?/, ", ")
       @template = template.split(/\n\r|\n/)
       @lines = []
       @constants = {}
