Fix stack leak in LIST

blk/382

@@ -3,7 +3,7 @@
     16 0 DO
         I 1+ DUP 10 < IF SPC THEN . SPC
         64 I * BLK( + DUP 64 + SWAP DO
-            I C@ DUP 0x1f > IF EMIT ELSE LEAVE THEN
+            I C@ DUP 0x1f > IF EMIT ELSE DROP LEAVE THEN
         LOOP
         NL
     LOOP ;