[arch-general] Pacman, adding comments to the packages

Hello, I propose to add the ability to add comments to the packages in pacman. For example, sometimes you need to install packages as a optional or makedepend. I always do it with --as-deps key. Later, when you run "pacman -Qdt" to see and cleanup orphan packages you can't distinguish really orphan packages and packages installed via the reasons, describedabove. In this case comments to the packages could be very useful. Sorry fo my english :)