Fix assertion typo
Fix assertion typo

OpenImageIO/oiio,mcanthony/oiio,bdeluca/oiio,cwilling/oiio,bdeluca/oiio,mcanthony/oiio,YangYangTL/oiio,OpenImageIO/oiio,YangYangTL/oiio,cwilling/oiio,YangYangTL/oiio,lgritz/oiio,sambler/oiio,sambler/oiio,bdeluca/oiio,mcanthony/oiio,sambler/oiio,OpenImageIO/oiio,micler/oiio,micler/oiio,cwilling/oiio,lgritz/oiio,cwilling/oiio,lgritz/oiio,lgritz/oiio,sambler/oiio,micler/oiio,bdeluca/oiio,micler/oiio,OpenImageIO/oiio,YangYangTL/oiio,mcanthony/oiio