Fix typo in comment. BIG -> BIT

lib/premailer/adapter/nokogiri.rb

@@ -213,7 +213,7 @@ def load_html(input) # :nodoc:
           end
         end
         # Default encoding is ASCII-8BIT (binary) per http://groups.google.com/group/nokogiri-talk/msg/0b81ef0dc180dc74
-        # However, we really don't want to hardcode this. ASCII-8BIG should be the default, but not the only option.
+        # However, we really don't want to hardcode this. ASCII-8BIT should be the default, but not the only option.
         if thing.is_a?(String) and RUBY_VERSION =~ /1.9/
           thing = thing.force_encoding(@options[:input_encoding]).encode!
           doc = ::Nokogiri::HTML(thing, nil, @options[:input_encoding]) {|c| c.recover }