lib/sass/selector/pseudo.rb in sass-3.7.1 vs lib/sass/selector/pseudo.rb in sass-3.7.2

@@ -132,10 +132,10 @@
         return '' if name == 'not' && @selector && @selector.members.all? {|m| m.invisible?}
 
         res = (syntactic_type == :class ? ":" : "::") + @name
         if @arg || @selector
           res << "("
-          res << @arg.strip if @arg
+          res << Sass::Util.strip_except_escapes(@arg) if @arg
           res << " " if @arg && @selector
           res << @selector.to_s(opts) if @selector
           res << ")"
         end
         res