Fix options fields

Author: pjg

lib/omniauth/strategies/linkedin.rb

@@ -60,7 +60,7 @@ def access_token
       end
 
       def raw_info
-        @raw_info ||= access_token.get("/v1/people/~:(#{fields.join(',')})?format=json").parsed
+        @raw_info ||= access_token.get("/v1/people/~:(#{options.fields.join(',')})?format=json").parsed
       end
 
       private

spec/omniauth/strategies/linkedin_spec.rb

@@ -77,7 +77,9 @@
     before :each do
       access_token = double('access token')
       response = double('response', :parsed => { :foo => 'bar' })
-      expect(access_token).to receive(:get).with("/v1/people/~:(baz,qux)?format=json").and_return(response)
+      expect(access_token).to receive(:get)
+        .with("/v1/people/~:(id,email-address,first-name,last-name,headline,location,industry,picture-url,public-profile-url)?format=json")
+        .and_return(response)
 
       allow(subject).to receive(:access_token) { access_token }
     end