Fix memory leaks in topo_topology_destroy()
Fix memory leaks in topo_topology_destroy()

This commit was SVN r292.

ggouaillardet/hwloc,ggouaillardet/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,shekkbuilder/hwloc,ggouaillardet/hwloc,shekkbuilder/hwloc