Merge tag '6.5-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:
 "A small SMB mount option fix, also for stable"

* tag '6.5-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix null auth