Replace recent "(light blue aura)" with
"(flickering light blue)" if there are 1..4 orcs,
"(glimmering light blue)" if 5..12, or
"(gleaming light blue)" if there are 13 or more, and move its place
in the formatted name.
_3.6.1_: Sting (weapon in hand) (glowing light blue)
_recent: Sting (weapon in hand) (light blue aura)
_now___: Sting (weapon in hand, flickering light blue)
The thresholds for intensity may need to be tweaked. The start
message has been changed from "glows" to "flickers/glimmers/gleams"
and is given when the intensity changes (up or down) as well as when
first glowing. Stop message will usually be "stops flickering" but
some form of mass kill (genocide for sure, maybe explosion, probably
not wand zap) might result in stopping directly from higher intensity.
It still "quivers" if hero is blind when there are orcs on the level,
but no name augmentation shows in inventory for that situation;
describing it as "(weapon in hand, quivering)" would be too silly.
Also, the quiver or glow intermediate message if blindness is toggled
while Sting is active only worked for make_blinded(), not for putting
on and taking off a blindfold. Now fixed. I think becoming blind due
to polymorphing into an eyeless form is still not handled, but there
are no eyeless creatures capable of wielding weapons so that can wait.
Polymorphing from eyeless to sighted is handled but moot for Sting.