CircleCI tests are failing on Rubocop

[kgeorgak]

Running RuboCop...
Inspecting 17 files
...C.....C.......

Offenses:

libraries/resource_user_shadow.rb:16:70: C: Unnecessary spacing detected.
        @sp_lstchg, @sp_expire, @sp_min, @sp_max, @sp_warn, @sp_inact  = nil
                                                                     ^
libraries/resource_user_shadow.rb:54:9: C: rescue at 54, 8 is not aligned with end at 56, 6.
        rescue
        ^^^^^^
test/unit/spec/centos66_options.rb:1:2: C: Indentation of first line in file detected.
 CENTOS66_SERVICE_OPTS = {
 ^^^^^^^^^^^^^^^^^^^^^

17 files inspected, 3 offenses detected

[kgeorgak]

Fixed in #3