When #wizinstrinsic was expanded to be able to set any timed attribute,
some that need more than just a timeout counter were left inconsistent.
1) Timed Flying wasn't blocked by levitation, and existing flight
wasn't becoming blocked by timed levitation. Also, eventual flight
timeout wasn't updating the status line, so false 'Fly' condition
remained shown until a status update happened for some other reason.
2) Setting timer for Warn_of_mon didn't set up any type of monster to
warn about so wouldn't do anything. This sets that to grid bug
unless already set due to polymorph form or artifact that warns.
The end.c portion is just a bit of formatting.