junegunn/vader.vim — pull request #40 by blueyed (2014-11-26 15:51:00+00:00)
Title: doc: suggest setting HOME=/dev/null

Otherwise Vim will use it in &runtimepath, which loads plugins from
~/.vim/plugin.

Instead of /dev/null $PWD or something else could be used, but then
`set viminfo=` should get suggested, too.