Suggestion, Niko. I've modded my own version to put the link before the Report to moderator link, since I think that makes more sense for the action. It's not modifying the post at all (which the buttons in that strip, aside from Quote, all do in some way), it's just accessing minor information. Which is similar to the IP that's logged for each post.
Plus, with smaller screens and fixed width themes, and even with Curve's new fixed proportions display template (which is a godsend), the buttons generally wind up dropping down to a new line. This isn't an ideal situation, and so I think putting the link down near the Report to moderator link would make more sense and prevent the template from looking cluttered.
Besides, when someone sees the « Last Edit: Month Day, Year, HH:MM:SS PM by displayname », the link to viewing edits of the post will be right below it and users would connect the two thoughts much easier than if the button were at the top.