Fix variable mixup from e8f64be6
Just got this warning:
../OpenFlipper/libs_required/ACG/GL/globjects.cc:643:51: warning: variable 'gltex' is uninitialized when used within its own initialization [-Wuninitialized] QImage gltex = ACG::Util::convertToGLFormat(gltex);
Introduced by a recent commit that mixed up two variables:
- QImage gltex = QGLWidget::convertToGLFormat ( qtex ); + QImage gltex = ACG::Util::convertToGLFormat(gltex);
I didn't test this change, but it seems clear enough that change was unintended.