I've managed to muck up a commit message bad enough, that when I read it back, even I can't work out what is says!
This commit hasn't been pushed and I know that the message can be changed with:
git commit --amend -m "New commit message"
(thanks to this post)
However, I am using the GitHub for Windows GUI. So is there any way for me to change the commit message without jumping into powershell?