valgrind: Conditional jump or move depends on uninitialised value

(cherry picked from commit e3dad060929de9beeeed2978f1b1427a91152073)

Conflicts:
	vcl/source/gdi/metaact.cxx

Change-Id: Ia0b22f7c394d1c2387d1cad7e3d99c79eaeca81a