I noticed this a couple days ago. When combat is over (you know, when it's generally pretty important to know if everyone is prone or not), the "is lying here prone" action message seems to be replaced with the common action message.
Quote:
[HP: 99%] [ME: 95%] [PE: 84%]
> l
A downward slope in a dangerous cavern
This dark tunnel's ceiling and walls are fractured and broken into
many jagged edges and scattered rocks. The floor, surprisingly, is free
of most of the debris forming a narrow, walkable trail. The few stalagmites
that grow out of the rock are also scarred and chipped away, leaving
broken edges rather than the usual smooth surfaces. Stuck between many
of the rocks are large spider webs which are nearly as large as a human
is tall. There are also some patches of moss and mold scattered about the
tunnel floor which angles sharply downward here and drops off into darkness.
Obvious exits: d ne
A pale yellow leafy plant struggles here to survive.
(Charmed) A large, black horse is lying here prone.
A giant cave spider is here, fighting a large, black horse.
[HP: 99%] [ME: 95%] [PE: 84%]
>
You massacre a giant cave spider's head with your acidic bite.
Your acidic bite starts to melt a giant cave spider's chest.
You demolish a giant cave spider's chest with your acidic bite.
Powerful acid eats a giant cave spider as it falls lifeless to the ground.
A giant cave spider is DEAD!!
You hear a giant cave spider's death cry.
You get a single silver coin from a corpse of a giant cave spider.
You get 4 copper coins from a corpse of a giant cave spider.
You junk a corpse of a giant cave spider.
Just keep it all.
[HP: 99%] [ME: 95%] [PE: 83%]
> l
A downward slope in a dangerous cavern
This dark tunnel's ceiling and walls are fractured and broken into
many jagged edges and scattered rocks. The floor, surprisingly, is free
of most of the debris forming a narrow, walkable trail. The few stalagmites
that grow out of the rock are also scarred and chipped away, leaving
broken edges rather than the usual smooth surfaces. Stuck between many
of the rocks are large spider webs which are nearly as large as a human
is tall. There are also some patches of moss and mold scattered about the
tunnel floor which angles sharply downward here and drops off into darkness.
Obvious exits: d ne
The sliced-off leg of a spider is lying here.
A pale yellow leafy plant struggles here to survive.
(Charmed) A large, black horse looks restless.
[HP: 99%] [ME: 95%] [PE: 83%]
>
A large, black horse regains his footing.
[HP: 99%] [ME: 95%] [PE: 83%]
>