Yes you are right, it's a typo.
Thanks for the report.
On Tue, Jan 31, 2017 at 11:57 PM, Craig Wright <crw+xwiki(a)crw.xyz> wrote:
  Noticed this in xwiki.cfg, diff between 8.4.4 and 9.0:
 102c105
 < # xwiki.store.migration.manager.hint=hibernate
 ---
  #
xwiki.store.migration.manager.hint=hibernatehibernate 
 I am going to assume hibertnatehibernate is not the correct value there. :)
 Let me know if you want a bug filed.
 Thanks,
 Craig 
--
Thomas Mortagne