git-crypt diff as textconv for git-blame

[jasonm]

Hello! I notice that git blame shows encrypted file contents as a single line. Here's an example session with a fresh repo. There appears to be support for textconv under git-blame (git documentation and git test case).

I'm not sure if this is expected or not. I think that the git blame textconv_demo.odt example output on that "git documentation" page is what we'd ideally see. Is this something that perhaps could work with a different configuration on my end, or something that could be contributed to git-crypt?

Thanks!