curses: resize vs beep

Dynamically resizing the terminal window during play by dragging its
edges was beeping (a lot if you dragged slowly).  Recogize the key
code sent for that instead of complaining about unrecognized input.

win/curses/cursmisc.c

@@ -63,13 +63,6 @@ curses_read_char(void)
         ch = '\033'; /* map NUL to ESC since nethack doesn't expect NUL */
     }
 
-#ifdef KEY_RESIZE
-    /* Handle resize events via get_nh_event, not this code */
-    if (ch == KEY_RESIZE) {
-        ch = C('r'); /* NetHack doesn't know what to do with KEY_RESIZE */
-    }
-#endif
-
     if (counting && !isdigit(ch)) { /* dismiss count window if necessary */
         curses_count_window(NULL);
         curses_refresh_nethack_windows();
@@ -964,6 +957,13 @@ curses_convert_keys(int key)
         ret = iflags.num_pad ? '5' : 'g';
         break;
 #endif /* KEY_B2 */
+#ifdef KEY_RESIZE
+    case KEY_RESIZE:
+        /* actual resize is handled elsewhere; just avoid beep/bell here */
+        ret = '\033'; /* was C('R'); -- nethack's redraw command */
+        reject = FALSE;
+        break;
+#endif
     }
 
     /* phone layout is inverted, 123 on top and 789 on bottom; if player has