get rid of NetHack macro conflict with curses routine delay_output()

src/mklev.c

@@ -2001,7 +2001,7 @@ mkinvokearea(void)
         }
 
         flush_screen(1); /* make sure the new glyphs shows up */
-        delay_output();
+        nh_delay_output();
     }
 
     You("are standing at the top of a stairwell leading down!");