[luatex] LuaTeX fails to respond correctly to 'e' (edit)

[Akira Kakuto]

Hello,

> LuaTeX doesn't seem to open an editor when given 'e' in response to for
> example the 'Undefined control sequence' prompt. I see this in both
> MiKTeX and TeX Live, so suspect it's an issue/decision at the LuaTeX
> end. Is this deliberate, or is it a bug?

I think calledit() was discarded in LuaTeX, because it was
commented out in ptexlib.h:
/* extern void calledit (); */

Best regards,
Akira KAKUTO