[BUG] gitk with few commits

Hello,

I started a new repository, for now there are only two commits. In gitk the area to display the commits is far from being filled. I can scroll up all the same.

Then marking commits by clicking on them fails, I have to click where they are located, when the canvas is scrolled down completely. Then the canvas is redrawn to show the commits at the top again.

I tried shortly to fix this, but my Tcl/Tk knowledge ...

git version 1.4.0.rc2.ga95e tcl/tk version 8.4.12-1

(Tk is patched with the patch from D. Richard Hipp Paul Mackerras provided to me.)

Best regards Uwe