Style and lint fixes to support newer ChefDK

Change-Id: If08006279134ecaed1ab49c6dd6d51e5bcab7f88
Depends-On: I6ce4587caa3ae68ddbd3ef1a521aaf46f4840b2c
(cherry picked from commit 09a7de3b5e)

README.md

@@ -6,7 +6,8 @@ This cookbook installs the OpenStack Integration Test Suite **Tempest** as part
 Requirements
 ============
 
-Chef 11 or higher required (for Chef environment use).
+- Chef 12 or higher
+- chefdk 0.9.0 or higher for testing
 
 Cookbooks
 ---------

metadata.rb

@@ -2,6 +2,8 @@
 name 'openstack-integration-test'
 maintainer 'openstack-chef'
 maintainer_email 'openstack-dev@lists.openstack.org'
+issues_url 'https://launchpad.net/openstack-chef' if respond_to?(:issues_url)
+source_url 'https://github.com/openstack/cookbook-openstack-integration-test' if respond_to?(:source_url)
 license 'Apache 2.0'
 description 'Installs and configures the Tempest Integration Test Suite'
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))

spec/spec_helper.rb

@@ -11,12 +11,12 @@ REDHAT_OPTS = {
   platform: 'redhat',
   version: '7.1',
   log_level: LOG_LEVEL
-}
+}.freeze
 UBUNTU_OPTS = {
   platform: 'ubuntu',
   version: '14.04',
   log_level: LOG_LEVEL
-}
+}.freeze
 
 shared_context 'tempest-stubs' do
   before do