another coin toss i guess

rogue/ring.c

@@ -44,6 +44,8 @@
  *
  */
 
+#include <stdlib.h> /* rand(3) */
+
 #include "random.h"
 #include "rogue.h"
 
@@ -234,7 +236,7 @@ gr_ring(object *ring, boolean assign_wk)
 		ring->is_cursed = (ring->class < 0);
 		break;
 	case ADORNMENT:
-		ring->is_cursed = coin_toss();
+		ring->is_cursed = rand() & 1;
 		break;
 	}
 }