It sounds as though most people don't particularly care which shell is used. However, I believe Greg is correct and the *right* thing to do is to have specific names (bash, sh, etc...) denote specific shells. I'd also like "#+begin_src shell" to specify the "don't care" option. That is what these patches do, with relatively little churn in the code (the one huge commit just renames a file).
I just applied these patches. The worst case is that users may have to change "ob-sh" to "ob-shell" in their config (although some initial testing seems to indicate that even this change won't be required), and possibly replace "sh" with "shell" in their local.mk file (if they have one) to run tests at the command line. In my mind this short-term hassle is worth the long-term correctness. I've just applied these patches. At this point I'll borrow Nick's asbestos underwear and place it on my head. Best Regards, -- Eric Schulte https://cs.unm.edu/~eschulte PGP: 0x614CA05D