title: View git stash using visual tool
body: <p>We configure our diff visual tool using <code>diff.tool=xxx</code> and then running <code>git difftool</code> to see a visual diff.   <a href="https://stackoverflow.com/questions/10725729/git-see-whats-in-a-stash-without-applying-stash">You can see</a> a stash using <code>git stash show</code> - but how can you see the stash visually like you can with diff?</p>