Shougo/neobundle.vim — pull request #97 by zhaocai (2013-05-22 23:40:53+00:00)
Title: Fix E121: Undefined variable: filetype_out

this assignment should be unnecessary. But somehow this error happens when I launch a new vim from terminal with -c `Gdiff` (vim-fugitive).
```vim
Error detected while processing function neobundle#autoload#command..neobundle#config#source:
line 22:
E121: Undefined variable: filetype_out
```