[Interest] Unescape hex escaped values in a QString

[Christian Ehrlicher]

Hi,

Is there a Qt-way to decode hex escaped values in a QString? In bug 
61420 the udev filename in /dev/disk/by-label/ is encoded with 
ID_FS_LABEL_ENC which means all non-latin1 characters are hex-escaped. 
But since QFileInfo::fileName() already returns a QString I can't use 
QString::fromUtf8() to do an 'automatic' conversion...

Thx,
Christian