fix #H7396 - wishing for "orange"

Wishing for "orange" might grant an orange, but it might give an
orange gem, orange potion, or orange spellbook instead (but never
orange dragon scales or orange dragon scale mail).  Force the food
object to be an exact match so wishing always produces an orange.

doc/fixes36.2

@@ -127,6 +127,7 @@ cancelled shapeshifter is no longer able to change shape
 cancelled shapeshifter hit by polymorph magic will become uncancelled
 polymorph zap which creates a new long worm (or retains an old one via wizard
 	mode monpolycontrol) can hit that worm multiple times (tail segments)
+wishing for "orange" could yield orange or orange colored gem/potion/spellbook
 
 
 Fixes to Post-3.6.1 Problems that Were Exposed Via git Repository

src/objnam.c

@@ -1,4 +1,4 @@
-/* NetHack 3.6	objnam.c	$NHDT-Date: 1533352036 2018/08/04 03:07:16 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.206 $ */
+/* NetHack 3.6	objnam.c	$NHDT-Date: 1537313446 2018/09/18 23:30:46 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.208 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2011. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -3204,6 +3204,11 @@ struct obj *no_wish;
         typ = SPE_BLANK_PAPER;
         goto typfnd;
     }
+    /* specific food rather than color of gem/potion/spellbook[/scales] */
+    if (!BSTRCMPI(bp, p - 6, "orange") && mntmp == NON_PM) {
+        typ = ORANGE;
+        goto typfnd;
+    }
     /*
      * NOTE: Gold pieces are handled as objects nowadays, and therefore
      * this section should probably be reconsidered as well as the entire