Only output candelabrum tip if candles are in inventory

doc/fixes37.0

@@ -77,6 +77,7 @@ NetHack Community Patches (or Variation) Included
 -------------------------------------------------
 hallucinatory trap names from github pull request #174
 autounlock feature originally from unnethack in github pull request #228
+applying a candelabrum with no candles gives a tip (github #265)
 
 
 Code Cleanup and Reorganization

src/apply.c

@@ -1138,7 +1138,20 @@ register struct obj *obj;
     }
     if (obj->spe <= 0) {
         pline("This %s has no %s.", xname(obj), s);
-        pline("To attach candles, apply them instead of the %s.", xname(obj));
+
+        /* only output tip if candles are in inventory */
+        boolean has_candles = FALSE;
+        struct obj *otmp = g.invent;
+        while (!has_candles && otmp) {
+            has_candles = Is_candle(otmp);
+            otmp = otmp->nobj;
+        }
+
+        if (has_candles) {
+            pline("To attach candles, apply them instead of the %s.",
+                  xname(obj));
+        }
+
         return;
     }
     if (Underwater) {