#1029 Update Vagrantfile fix error 143 Message: NoMethodError: undefined method `slice!'

What does this Merge Request do?

In facter => 3, structure is like this

memory => {
  swap => {
    available => "1.86 GiB",
    available_bytes => 1999630336,
    capacity => "0%",
    total => "1.86 GiB",
    total_bytes => 1999630336,
    used => "0 bytes",
    used_bytes => 0
  },
  system => {
    available => "38.54 GiB",
    available_bytes => 41387003904,
    capacity => "18.07%",
    total => "47.04 GiB",
    total_bytes => 50513121280,
    used => "8.50 GiB",
    used_bytes => 9126117376
  }
}

Merge Request checklist

• Tests added for new functionality. If not, please raise Issue to follow-up.
• This change is backward compatible. If not, please include steps to communicate to our users.
• Documentation added/updated, if needed.
• gdk doctor test added, if needed.