Fix functional specs to set properties to empty arrays

These can't be directly set to nil anymore.

Signed-off-by: Tim Smith <tsmith@chef.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/functional/resource/group_spec.rb b/spec/functional/resource/group_spec.rb
index dc5197f5d8..525a5e842d 100644
--- a/spec/functional/resource/group_spec.rb
+++ b/spec/functional/resource/group_spec.rb
@@ -293,8 +293,8 @@ describe Chef::Resource::Group, :requires_root_or_running_windows do
   end
 
   let(:group_name) { "group#{SecureRandom.random_number(9999)}" }
-  let(:included_members) { nil }
-  let(:excluded_members) { nil }
+  let(:included_members) { [] }
+  let(:excluded_members) { [] }
   let(:group_resource) do
     group = Chef::Resource::Group.new(group_name, run_context)
     group.members(included_members)