Fix typo that reversed the sense of the comparison... ImageBuf's weren't freeing memory when they reduced their needs, as intended.
Fix typo that reversed the sense of the comparison... ImageBuf's weren't
freeing memory when they reduced their needs, as intended.


git-svn-id: c3edda122e248ef33995da003806c930f62b9468@698 31904243-a364-42ac-a3db-9305396518ba

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