"The the Wizard of Yendor corpse tastes terrible."
"The" was supplied when formatting the sentence, "the" when formatting
the corpse object. Same applied to several other monsters, those
flagged as unique and without personal name (Oracle, Cyclops, others).
This also changes the corpse eating message to not always specify the
taste as "terrible" when the eater is omnivorous.
It also makes corpses (and tins) of unique monsters be wishable in
wizard mode. I had killed the Wizard at least half a dozen times
without a corpse being left, so used wishing instead. Later retries
did finally leave one--lack of corpse turned out to just be by chance.