I had to apply this patch to try gitk, so if someone wants the same he will be freed of doing this himself.
Created attachment 62302 [details, diff] typo fix in git-rev-list according to http://www.gelato.unsw.edu.au/archives/git/0506/5186.html
Created attachment 62303 [details] new ebuild
In CVS now, thx for reporting :)