Starting with txindex option produces a bug continually printing "y".

```
sudo apt-add-repository ppa:bitcoin/bitcoin
sudo apt-get update
bitcoind -daemon -txindex=1 -server=1 &
root@btc:~# Bitcoin server starting
: You need to rebuild the database using -reindex to change -txindex.

Do you want to rebuild the block database now?
yes
y
y
y
y
y
```

{
    
    unsubscribeFromCoreSignals();
    GUIUtil::saveWindowGeometry("nWindow", this);
    if(trayIcon) 
        trayIcon->hide();
#ifdef Q_OS_MAC
    delete appMenuBar;
    MacDockIconHandler::cleanup();
#endif
    delete rpcConsole;
}
void BitcoinGUI::createActions()