We need to be careful when using the multi-arg version of
QString::arg() and passing as 2nd, 3rd etc parameter an int.
It doesn't do the same as passing multiple QStrings.
qDebug(), qInfo(), qWarning(), qCritical(), qFatal() expect %s arguments
to be UTF-8 encoded, while qPrintable() converts to local 8-bit encoding.
Therefore qUtf8Printable() should be used for logging strings instead of
qPrintable().
