Ticket 48276 - initialize free_flags in reslimit_update_from_entry()
Description: In reslimit_update_from_entry() the free_flags was not initialized,
which could lead to it being seen as set, and cause an entry's
vattrs to be incorrectly/unexpectedly freed.
https://fedorahosted.org/389/ticket/48276
Reviewed by: nhosoi(Thanks!)
(cherry picked from commit 2311c71cec33c29863bdb1dabe1ed363679316d3)