Ribtoks/yace — comment on commit 1b0f6c13196233825bc04a9382419d35fd5a9c5e
File:  line 0
By Ribtoks:

I've already done it.
git rebase -i HEAD~2
-edit commit (merge with previous)
git commit --amend
git rebase --continue
git push -f testing origin

If you'll work only with TortoiseGit GUI you'll never know how to do more complex things than committing.