>
> How about the following resolution?  We rename ob-sh.el to ob-shell.el.
> New "shell" code blocks could use the value of the
> `org-babel-sh-command' environment variable.  Then sh, bash, zsh, csh,
> ash, dash (am I missing any other common ones) use the specific shell
> specified.
>

The attached patches make this change and continue to pass the entire
test suite.  The problem being that with ob-sh, no longer present many
users may have to change their configuration and possible the value of
their local.mk file.  One solution there is to add a dummy ob-sh.el with
a deprecation message for some transition time.  Thoughts?