NixOS/nixpkgs — pull request #2165 by offlinehacker (2014-04-07 21:11:05+00:00)
Title: systemd: implement `systemd.services.dataPrefix`, add a few example modules using this

It would be nice to have a single one location to change dataPrefix(default /var) of modules. I need this to implement systemd user services.

This commit does not try to fix everything, it's just here to start somewhere and later i will fix other modules as needed.