fix github issue 221 - unfixable troubles

Fixes #221

Routine unfixeable_trouble_count() is used for both applying a unicorn
horn (possibly internally via #monster if poly'd into a unicorn) and
drinking a blessed potion of restore ability.  For the latter case, it
always gave the wrong answer (unless the hero happened to be all of
Sick and Stunned and Confused and Hallucinating and Vomiting and Deaf).
Since the actual count wasn't used to decide whether hero felt "great"
or just "good", having any of those conditions would hide the problem.

doc/fixes36.3

@@ -1,4 +1,4 @@
-$NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.112 $ $NHDT-Date: 1568509226 2019/09/15 01:00:26 $
+$NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.113 $ $NHDT-Date: 1568831820 2019/09/18 18:37:00 $
 
 This fixes36.3 file is here to capture information about updates in the 3.6.x
 lineage following the release of 3.6.2 in May 2019. Please note, however,
@@ -139,6 +139,8 @@ when spellcasting monster aimed at wrong spot due to not being able to see
 prevent impossible when guard tries to relocate a monster on a full level
 hallucination provides partial protection from passive gaze counterattack
 	against hero's attack; check for that before checking for free action
+feedback from blessed potion of restore ability never reported "you feel great"
+	due to bad logic for not-unihorn case in unfixable_trouble_count()
 
 
 Fixes to Post-3.6.2 Problems that Were Exposed Via git Repository