This patch replaces direct struct initialization cpuset.CPUSet{} with
cpuset.New() to ensure the internal map is properly initialized.
While most CPUSet methods work correctly without this change, the Equals
method uses reflect.DeepEqual which returns false when comparing CPUSet
instances where one has a nil internal map and the other has an initialized
(empty) map. This can lead to unexpected false negatives in equality checks.
For example, the following comparison would incorrectly return false:
cpuset.CPUSet{}.Equals(cpuset.New())
This change ensures consistent behavior across all CPUSet operations.
Signed-off-by: Lukasz Wojciechowski <l.wojciechow@partner.samsung.com>