The ip tool might be provided by another package (such as
Busybox), not necessarily implementing the -Version switch.
Trying an actual usage (`ip link show') might be a better
test that would work with all implementations of `ip'.
Signed-off-by: NDaniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: NShuah Khan <shuahkh@osg.samsung.com>