ImageBuf -- in IB::read(), mark the IB as bad if init_spec() fails.
ImageBuf -- in IB::read(), mark the IB as bad if init_spec() fails.


git-svn-id: c3edda122e248ef33995da003806c930f62b9468@889 31904243-a364-42ac-a3db-9305396518ba

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