doxy: make the XML output examples shorter
doxy: make the XML output examples shorter

Remove some non-interesting attributes and so on.

This commit was SVN r4639.

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