volume mount test is failing with updated tree.

[praveenkumar]

with updated 7.5 tree now below command provide mount point number as 8 instead 4.

$ findmnt | grep "\[/var/lib/"        
| |-/mnt/sda1/var/lib/docker/containers                                                                                                               /dev/sda1[/var/lib/docker/containers] xfs        rw,relatime,seclabel,attr2,inode64,noquota
| |-/mnt/sda1/var/lib/docker/overlay2                                                                                                                 /dev/sda1[/var/lib/docker/overlay2]   xfs        rw,relatime,seclabel,attr2,inode64,noquota
|-/var/lib/docker                                                                                                                                     /dev/sda1[/var/lib/docker]            xfs        rw,relatime,seclabel,attr2,inode64,noquota
| |-/var/lib/docker/containers                                                                                                                        /dev/sda1[/var/lib/docker/containers] xfs        rw,relatime,seclabel,attr2,inode64,noquota
| `-/var/lib/docker/overlay2                                                                                                                          /dev/sda1[/var/lib/docker/overlay2]   xfs        rw,relatime,seclabel,attr2,inode64,noquota
|-/var/lib/boot2docker                                                                                                                                /dev/sda1[/var/lib/boot2docker]       xfs        rw,relatime,seclabel,attr2,inode64,noquota
|-/var/lib/minishift                                                                                                                                  /dev/sda1[/var/lib/minishift]         xfs        rw,relatime,seclabel,attr2,inode64,noquota
`-/var/lib/origin                                                                                                                                     /dev/sda1[/var/lib/origin]            xfs        rw,relatime,seclabel,attr2,inode64,noquota

$ findmnt | grep "\[/var/lib/" | wc -l
8

[LalatenduMohanty]

Resolved via #244