chrisbra/SudoEdit.vim — pull request #34 by blueyed (2014-08-26 15:43:50+00:00)
Title: Don't call expand on shellvar

This is especially important when testing/using variables that do not
exist, because then a new shell is spawned by Vim.
But since they should be available already in Vim from the (shell) env
there is no point in doing so.

See also: http://www.reddit.com/r/vim/comments/2el2zo