rework to use the 'action-if-found/not-found' field
rework to use the 'action-if-found/not-found' field

git-svn-id: b45eb58a730bface9285fcfce17223741c32356f@1254 4b44e086-7f34-40ce-a3bd-00e031736276

BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc