fix pull request #540 - don't autoquiver aklys

If player throws a wielded aklys and it fails to return, and quiver
is empty when picking it back up, don't put it into that slot because
it needs to be wielded to achieve best throwing effect.  A player who
had wielded it and was using 'f' to throw it might not notice that
it isn't returning until it hasn't returned several times.  Moot if
quiver already has some missile readied.  Don't autoquiver even if
some other weapon is wielded because that might have been done just
to go retrieve the aklys.

The game doesn't keep track of whether a previously thrown item was
wielded at the time, and shouldn't be changed to auto-wield in such
situation.  Leaving quiver empty so that player is prompted for what
to throw is sufficient.

Fixes #540

doc/fixes37.0

@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.591 $ $NHDT-Date: 1625962417 2021/07/11 00:13:37 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.592 $ $NHDT-Date: 1625969349 2021/07/11 02:09:09 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -740,6 +740,8 @@ correct the pluralization of monarch to monarchs, rather than monarches
 don't allow web spun by spider to interfere with solving Soloban
 fix parsing of wish adjectives (return value broken by changes accompanying
 	figurine gender patch)
+when picking up a thrown weapon while quiver is empty, don't put it into the
+	quiver slot if it needs to be wielded for throw-and-return action
 
 curses: 'msg_window' option wasn't functional for curses unless the binary
 	also included tty support