Enabled setting chef license server also via env variable

Signed-off-by: Nik08 <[email protected]>

README.md

@@ -347,6 +347,8 @@ For avoiding a single point of failure, it is possible to set up multiple local
         - https://test-local-licensing-service-url-3
 ```
 
+It could also be configured by setting environment variable `CHEF_LICENSE_SERVER` with the Licensing Service URL(s).
+
 <!-- TODO Insert Link to right document -->
 See the [Chef License documentation](/license/) for more information about Chef licensing.
 

lib/kitchen/verifier/inspec.rb

@@ -121,9 +121,8 @@ def call(state)
       def setup_chef_license_config(opts, config)
         # Pass chef_license_key to inspec if it is set
         # Pass chef_license_server to inspec if it is set
-        chef_license_key = config[:chef_license_key] || ENV["CHEF_LICENSE_KEY"]
-        opts[:chef_license_key] = chef_license_key if chef_license_key
-        opts[:chef_license_server] = config[:chef_license_server] if config[:chef_license_server]
+        opts[:chef_license_key] = config[:chef_license_key] || ENV["CHEF_LICENSE_KEY"]
+        opts[:chef_license_server] = config[:chef_license_server] || ENV["CHEF_LICENSE_SERVER"]
       end
 
       def setup_waivers(opts, config)