tone will end automaticly

Marlin/ultralcd.cpp

   if (freq > 0) {
     #if BEEPER > 0
       SET_OUTPUT(BEEPER);
-      tone(BEEPER, freq);
-      delay(duration);
-      noTone(BEEPER);
+      tone(BEEPER, freq, duration);
     #elif defined(LCD_USE_I2C_BUZZER)
       lcd.buzz(duration,freq);
     #else