Fixing a buglist bug. Also changing an unrelated buglist item a bit (it was

mine to begin with, I thought I had a way to fix it but it turns out I didn't,
so I was researching it again).

Checked into CVS.

src/artifact.c

@@ -1332,6 +1332,15 @@ void arti_speak(obj)
 	return;
 }
 
+boolean
+artifact_has_invprop(otmp, inv_prop)
+struct obj *otmp;
+uchar inv_prop;
+{
+	const struct artifact *arti = get_artifact(otmp);
+
+	return((boolean)(arti && (arti->inv_prop == inv_prop)));
+}
 
 #endif /* OVLB */