fix B08011 - request for "wield" change

Implement's <Someone>'s suggestion that the currently wielded
weapon be included among the list of inventory candidates for the
wield command.  It affects the list of letters shown in the prompt
and the subset inventory displayed if you respond with '?'; it doesn't
change how wielding works or what item you can pick to wield.

     Do the same thing for quivering:  include any currently quivered
item among the choices.  Also include the secondary weapon as a choice
if you're not actively two-weaponing.

doc/fixes34.1

@@ -258,6 +258,8 @@ with multiple leashes in use, 2nd had 50/50 chance of having unbounded length
 GOLDOBJ: coins aren't subject to curses/blesses and don't need identification
 can no longer activate a figurine while engulfed
 can't use figurines to get too many erinyes or Nazgul
+include currently wielded weapon among the list of likely choices for 'w'
+likewise for currently quivered ammo among choices for 'Q'
 
 
 Platform- and/or Interface-Specific Fixes

src/invent.c

@@ -829,10 +829,12 @@ register const char *let,*word;
 		|| (putting_on(word) &&
 		     (otmp->owornmask & (W_ARMOR | W_RING | W_AMUL | W_TOOL)))
 							/* already worn */
+#if 0	/* 3.4.1 -- include currently wielded weapon among the choices */
 		|| (!strcmp(word, "wield") &&
 		    (otmp->owornmask & W_WEP))
+#endif
 		|| (!strcmp(word, "ready") &&
-		    (otmp->owornmask & (W_WEP | W_SWAPWEP | W_QUIVER)))
+		    (otmp == uwep || (otmp == uswapwep && u.twoweap)))
 		    ) {
 			foo--;
 			foox++;