Um, -kkv means to include also the value. To get just the key (like in the SVN repository), you need to use -kk.
True. Anyway the repository is now generated in -kkv mode, which means that any checked out files will have that same content as if checked out from cvs. A .gitattributes file is also generated, which contains the attribute "ident" for these files, which means that git will strip the revision info from the $Id$ markers on commit (and then expand with a git identifier on next checkout).