oiiotool --chnames fix to the way channel names are changed in the spec (was putting it in the IR's spec, but not the underlying IB's spec).
oiiotool --chnames fix to the way channel names are changed in the spec
(was putting it in the IR's spec, but not the underlying IB's spec).

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