Fixes #15537 - Allow package names as an array (#414)

This change allows users to specify package or package group names in a
comma-separated list when creating a content view filter rule rather
than one package at a time.

test/functional/filter_rule/create_test.rb

@@ -0,0 +1,20 @@
+require_relative '../test_helper'
+require 'hammer_cli_katello/filter_rule'
+
+module HammerCLIKatello
+  describe FilterRule::CreateCommand do
+    it 'allows minimal options' do
+      api_expects(:content_view_filter_rules, :create) do |p|
+        p['content_view_filter_id'] == 1 && p['name'] == 'rpm1'
+      end
+      run_cmd(%w(content-view filter rule create --content-view-filter-id 1 --name rpm1))
+    end
+
+    it 'allows multiple package names' do
+      api_expects(:content_view_filter_rules, :create) do |p|
+        p['content_view_filter_id'] == 1 && p['names'] == %w(rpm1 rpm2)
+      end
+      run_cmd(%w(content-view filter rule create --content-view-filter-id 1 --names rpm1,rpm2))
+    end
+  end
+end