fix encode bugs on diff not utf-8 encode's code

app/views/commits/_text_file.html.haml

@@ -2,7 +2,7 @@
 - line_new = 0
 - lines_arr = diff.diff.lines.to_a
 - lines_arr.each do |line|
-  - encode(line)
+  - line = encode(line)
   - next if line.match(/^--- \/dev\/null/)
   - next if line.match(/^--- a/)
   - next if line.match(/^\+\+\+ b/)

lib/utils.rb

@@ -29,12 +29,12 @@ module Utils
   module Colorize
     include CharEncode
     def colorize
-      system_colorize(encode(data), name)
+      system_colorize(data, name)
     end
 
     def system_colorize(data, file_name)
       ft = handle_file_type(file_name)
-      Pygments.highlight(data, :lexer => ft, :options => { :encoding => 'utf-8', :linenos => 'True' })
+      Pygments.highlight(encode(data), :lexer => ft, :options => { :encoding => 'utf-8', :linenos => 'True' })
     end
 
     def handle_file_type(file_name, mime_type = nil)