How can I have some debug information regarding git/git-shell? I had a problem, that user1 could clone a repository without problem, while user2 could clone only an empty one. I had set GIT_TRACE=1, but nothing useful was told. Finally, after a long trial and error, it turned out that it was a permission problem on a file. An appropriate error message could short-circuit this problem.
![How can I debug git/git-shell related problems?](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)