What's the intended use of VC-tag in maint.mk? I can't seem to find anything on this in the manual, or in the code, and only a short note when it was added in the ChangeLog. $(VC-tag) doesn't seem to be used anywhere. This seems to be connected with the comment:
# If it's not already specified, derive the GPG key ID from # the signed tag we've just applied to mark this release. I'd like indeed to have just applied that signed tag, but I can't see how to do it via a make target. -- http://rrt.sc3d.org
