Fix a bug where the children of root got reversed twice (should be once).
Fix a bug where the children of root got reversed twice (should be once).

darcs-hash:20081213100840-ed7c9-44cd81aad068631050580a67abe8892bd5817a59.gz

the-real-blackh/hexpat,the-real-blackh/hexpat,the-real-blackh/hexpat