Simple sed filter to padd all by 4 spaces for inclusion into e-mail
and the likes.

In order to make it work, you need to:

*   install Perl::Critic

*   add bin/perl_critic to your path

    Note that `perlcritic` script name is already taken by wrapper
    script that comes with Perl::Critic itself

*   show trailing space as well
*   use Unicode characters
*   toggle with <F2>

Because using alias pollutes ps -f output.

*   if dotfiles are shared by git, it will ignore
    all files under dotfiles/git-universe/private

*   if you use other sharing mechanism, you need
    to exclude these files other way

*   https://gist.github.com/lentil/810399/

*   http://www.vim.org/scripts/script.php?script_id=2914

*   http://www.vim.org/scripts/script.php?script_id=2975