We have only one direct user of ESCAPE_SPECIAL and there " is not used.
Indirect ones are %pE, but IIRC most of them are either debug messages or some
kind of (non-ABI) messages.
It would be nice if you can confirm this and put a note into commit message.
If the above is confirmed, feel free to add mine
Reviewed-by; Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>