Bug#996542: Post install fails when run as non-root user and does not respect PKG_ROOT

[Glenn Washburn]

Package: udev
Version: 247.3-5

Probably the easiest solution would be to exit early from the post
install if the current user is not root. There's probably a more subtle
fix that preserves more functionality (eg. maybe updating the hwdb in
PKG_ROOT?), what ever gets the post install to not fail in this
scenario works for me.

Glenn