Regression[4.10->4.11]: Short description on Git Blame is broken

Right-clicking a commit hash in Git Blame editor shows the full hash, but also a short description of the change and of its parent (author and subject).

This is done in GitEditorWidget::decorateVersion(), which calls GitClient::synchronousShortDescription. This function executes git log with the following arguments (see defaultShortLogFormatC):

("log", "--no-color", "--pretty=format:%h (%an \"%s", "--max-count=1", "986210c2ef9")

This is translated in CommandLine to:

log --no-color "--pretty=format:%h (%an "\^""%s" "--max-count=1" 986210c2ef9

Now QtcProcess's doSplitArgsWin fails to split these arguments, as it claims they have bad quoting.

I tried to fix it, but I don't have much time right now, and I'm afraid I might break something, so please handle it.