git remove trailing whitespace in new files before commit

Question

I know removing trailing whitespace can be done with a pre-commit hook. I am interested in doing it manually. I read the question here:
Make git automatically remove tra

Answer 1

If you use emacs, you can use "M^x delete-trailing-whitespace" to delete them before saving the file. (it can be customized in your .emacs also)

vi seems to also allow this : http://vim.wikia.com/wiki/Remove_unwanted_spaces