Dear Maintainer,

* What led up to the situation?

Replacement of grub-common by grub2-common.

* What exactly did you do (or not do) that was effective (or
  ineffective)?

Purged grub-common, got told that /usr/share/doc/grub-common is
non-empty, manually removed that directory.  Noticed that package
grub2-common symlinks to that directory, cursed under my breath.

* What was the outcome of this action?

Documentation on package grub2-common gone.

* What outcome did you expect instead?

Documentation on package grub2-common still intact.

I think grub2-common should package its documentation from below
/usr/share/doc/grub2-common instead of just symlinking to it.  Also
for the sake of "dpkg -L /usr/share/doc/grub2-common/..." returning
meaningful results.

* Miscellaneous

Debian bug #1121168 is related to this.