Look for stashed changes

[tmartinfr]

It would be great if gitcheck could also look and display stashed changes in repositories.

[mcorah]

I came here looking for something like this. I am often afraid to stash changes when working with a large number of git repos. So, it would be nice to have some output indicating existence of a stash.

If I get a chance, I might implement this and send a pull request.

[nilsjonsson]

This would be awesome since I have a habit of stashing code and forget about it!