I am now running 1.1-5.
I tried adding that option, but upon reboot, it failed to mount the remote qnap drive. Here is what my fstab file looks like:
192.168.0.3:/pve-backup /mnt/qnap nfs rw,hard,intr,rsize=8192,wsize=8192,timeo=14 0 0
I am able to mount with that line.