How to enable the horizontal scroll bar in git gui commit message edit control

I'm using latest msysgit and I can run the git gui to write the commit message. But I see the the message edit control don't have the horizontal scroll bar. See the image shot below(I just labeled 1). screen shot of git gui window Another issue I see is that how can I extend this window to the right bored of the window(I just labeled 2). Thanks. I notice this is a TK application, and I just check that my git gui version is 0.19, which is the latest release version. See: http://repo.or.cz/w/git-gui.git

Solution

The fixed width and lack of horizontal scroll bar in this control is a design decision made to encourage well formatted comments in accordance with the git and Linux projects commit style recommendations