References: - https://github.com/itchyny/lightline.vim/issues/43 - https://github.com/itchyny/lightline.vim/issues/87 - [Learn Vimscript Paths](http://learnvimscriptthehardway.stevelosh.com/chapters/40.html) - [@skwp's dotfiles](https://github.com/skwp/dotfiles/blob/6f5481cdeb44e2c826c360ee5c94f32c86ec93bb/vim/settings/lightline.vim#L34)
