Fix NFS mount for macOS 10.14

[urbantrout]

Fixes the following error:

(default) Error setting up mounts: Something went wrong running an SSH command!
(default) command : echo -e "#/bin/bash\nsudo mkdir -p /Users\nsudo /usr/local/etc/init.d/nfs-client start\nsudo mount -t nfs -o noacl,async 192.168.64.1:/Users /Users\n" | sudo tee /var/lib/boot2docker/bootlocal.sh && sudo chmod +x /var/lib/boot2docker/bootlocal.sh && /var/lib/boot2docker/bootlocal.sh

[NorseGaud]

Might be a good idea to if/else wrap and check [ -z $(sw_vers | grep 10.14) ].
Also, the CI looks to be broken and unrelated to your changes. :(

[NorseGaud]

Also, full error:

(default) Error setting up mounts: Something went wrong running an SSH command!
(default) command : echo -e "#/bin/bash\nsudo mkdir -p /Users\nsudo /usr/local/etc/init.d/nfs-client start\nsudo mount -t nfs -o noacl,async 192.168.64.1:/Users /Users\n" | sudo tee /var/lib/boot2docker/bootlocal.sh && sudo chmod +x /var/lib/boot2docker/bootlocal.sh && /var/lib/boot2docker/bootlocal.sh
(default) err     : exit status 32
(default) output  : #/bin/bash
(default) sudo mkdir -p /Users
(default) sudo /usr/local/etc/init.d/nfs-client start
(default) sudo mount -t nfs -o noacl,async 192.168.64.1:/Users /Users
(default) 
(default) Starting nfs client utilities.
(default) mount.nfs: an incorrect mount option was specified
(default) 
(default) 
(default) NFS share folder must be root. Please insert root password.
Waiting for machine to be running, this may take a few minutes...

[urbantrout]

I added the OS version check. Don't know what to do about the CI issues. I don't think this is related to my issue.

[NorseGaud]

I added the OS version check. Don't know what to do about the CI issues. I don't think this is related to my issue.

Nah, it isn't. I think this project is dead unfortunately. The travis setup is broken due to dependencies being out of date.

[iworker]

@NorseGaud @urbantrout
Actually, the problem is here:
$( [ -n "$(sw_vers | grep 10.14)" ] && echo ",nfsvers=3 ")
Here is screenshot from Travis build:

Probably, it would be simple and not bad solution to replace this checking with just nfsvers=3 and forget about old macOS versions :)