fix #H4482 - "a some <foo> corpses"

farlook was changed (end of December) to use doname instead of xname
to yield more info for items which had already been seen up close,
but it gave away info about ones which hadn't.  So doname was changed
(end of April) to use "some" instead of precise quantity (when the
quantity is greater than 1) for the latter, but that doesn't work
well with corpse_xname() when the hero is blind, yielding "a some
<foo> corpses".  While testing the first fix attempt, I noticed that
pickup gave "you can only lift some of the some <foo> corpses".

This fix is far from perfect.  farlook can still say "some <item>s"
but lookhere and pickup always say "N <item>s".  Picking up a stack
while blind will show "N <item>s" in inventory display, but dropping
it while still blind will revert to "some <item>s" for farlook.

doc/fixes36.1

@@ -345,6 +345,10 @@ rings covered by non-cursed gloves not listed as 'R' candidates
 in baalz_fixup, move any monster away from the two fake pool spots
 switching farlook from xname to doname was giving away information for items
 	located via object detection (quantity of detected gold)
+changing doname to use "some" instead of precise quantity when an item's
+	dknown flag is not set could result in blind hero getting
+	"There is a some jackal corpses here.  Eat one?" and
+	"You can only lift some of the some jackal corpses.  Continue?"
 catch up win/Qt/qt_win.cpp on 18-Dec-2015 change to formatkiller()
 fix for long lines in config file (28-Jan-2016) made 'O' command's 'list' and
 	'remove' menu choices in interactive handling for menu colorings,