Why do we need a grub-error tag?
It will not fit both grub and grub2 at the same time and its a useless tag to follow.
Normally if someone is good at solving grub and grub2 issues he will also know how to solve errors on those tags.
We don't have a unity-error tag, we have unity, we dont have wireless-error, we have wireless.
Why grub-error? Should we kill it?