VimDoSu is a plugin for (NEO) Vim that allows you to save files as root in one command.
It uses dosu instead of sudo, so if you decide to use this package, you need to install dosu first.
There is only one command: DosuSave.
It takes one optional argument Filename, and works the same as w, but asks for password everytime you save files (if it is required).
If you try to save a regular file with DosuSave, the file will be created as root.
I will fix it in future.