So anticlimactic, again…
Also, note how renaming the `end_sequence_t` constants to better match
their usage also simplifies the explanatory comment for TH04's
not-quirk.
Part of P0265, funded by [Anonymous] and iruleatgames.
No, I'm not copying exactly what was on ZUN's monitor during the 2010
MAG・ネット documentary. Also, this one was very lucky not to receive
a stupid function name.
Part of P0168, funded by Blue Bolt and rosenrose.
nmlgc