Provide a patch to show progress information when SIGINFO is caught. This
addition has been submitted upstream [1]:

https://bugzilla.samba.org/show_bug.cgi?id=11561

Apply an extra patch with the ACL option to add NFSv4 ACLs support [2].

Submitted by: des [1]
Wished by: Paul Lecuq <paul.lecuq@factorfx.com> [2]
Obtained from: FreeNAS [2]