This fixes the impossible from yn_function() for ^A after Z. One
call to yn_function stored the spell letter for do-again and then
another call was unintentionally using that when getting a y/n
response for askchain() while using menustyle:Traditional [when
spell was identify and eligible objects needed confirmation about
whether to be ID'd].
Fixing that seemed to break #pray so the paranoid_confirm routine
has been changed to not rely on canned input, even for queries where
the player hasn't specified that confirmation be required.
Behavior of ^A might be different in unexpected ways, but it wasn't
working correctly before.
f7e12d2801