github issue #934 - hearing unseem mon read scroll

Issue reported by Melon2007:  when non-deaf hero heard an unseen
monster read a scroll, the monster's type was identified accurately
(unless distorted by hallucination).  That was intentional but it
doesn't seem plausible for the hero's hearing to be that acute.
Change it to report the monster type accurately if not hallucinating
and monster is the same species as the hero (as the current form if
hero is poly'd), otherwise report it as "someone" when it's humanoid,
otherwise as "something".

Also, if the monster is heard at a spot that would be visible if
hero could see, draw a "remembered, unseen monster" glyph there.

Fixes #934

doc/fixes3-7-0.txt

@@ -1054,6 +1054,9 @@ phrasing of the "you can't" message when attempting to name any monster
 	defined with a unique name or title sounded strange when rejecting
 	<space> to remove the existing name without assigning a new one
 some instances of using up or stealing shop-owned boulder didn't charge for it
+when hero hears an unseen monster reading a scroll, only describe the monster
+	acccurately if hero is not hallucinating and monster is same species
+	as hero's current form
 
 
 Fixes to 3.7.0-x Problems that Were Exposed Via git Repository