Fixed Coverity reported issue.
Fixed Coverity reported issue.

CID 11814: Uninitialized scalar field (UNINIT_CTOR)
Non-static class member _updateCamera is not initialized in this constructor nor in any functions that it calls.



scrawl/osg,jtorresfabra/osg,scrawl/osg,tomasthoresen/osg,openscenegraph/osg,openscenegraph/osg,openscenegraph/osg,marchelbling/osg,marchelbling/osg,marchelbling/osg,jtorresfabra/osg,jtorresfabra/osg,openscenegraph/osg,marchelbling/osg,artoolkit/osg,scrawl/osg,tomasthoresen/osg,artoolkit/osg,scrawl/osg,tomasthoresen/osg,jtorresfabra/osg,artoolkit/osg,artoolkit/osg,tomasthoresen/osg