[FR] du option to show .files/.folders

[Yurii Kolesnykov]

By default du doesn't show disk usage of hidden files/folders.
There is a workaround for this as answered in this question
http://askubuntu.com/questions/356902/why-doesnt-this-show-the-hidden-files-folders
But this command is so weird, so I can manage to remember it. So I created
alias, but while I do so I thought that it will be good to have such
option, for example '--all-flle-names'.