Fix compiler warning about uninitialized variable
Fix compiler warning about uninitialized variable

micler/oiio,sambler/oiio,lgritz/oiio,lgritz/oiio,cwilling/oiio,mcanthony/oiio,YangYangTL/oiio,cwilling/oiio,OpenImageIO/oiio,YangYangTL/oiio,scott-wilson/oiio,lgritz/oiio,scott-wilson/oiio,mcanthony/oiio,sambler/oiio,cwilling/oiio,scott-wilson/oiio,bdeluca/oiio,bdeluca/oiio,sambler/oiio,micler/oiio,mcanthony/oiio,OpenImageIO/oiio,YangYangTL/oiio,lgritz/oiio,YangYangTL/oiio,sambler/oiio,bdeluca/oiio,micler/oiio,micler/oiio,OpenImageIO/oiio,bdeluca/oiio,cwilling/oiio,scott-wilson/oiio,OpenImageIO/oiio,mcanthony/oiio