d7cb21ac08 change the way a double is
converted which resulted in less precision.
Fix it by explictily setting the precision in QString::setNum()
Task-number: QTBUG-80068
Change-Id: I1fd9d00837155ceb707e84bfeb9deff03b5ab57e
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Konstantin Shegunov <kshegunov@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>