Adhere to standardrb style

Author: Jack Casey

lib/graphiti/resource.rb

@@ -154,9 +154,8 @@ def links?
     end
 
     def links(model)
-      self.class.links.inject({}) do |memo, (name, blk)| 
+      self.class.links.each_with_object({}) do |(name, blk), memo|
         memo[name] = instance_exec(model, &blk)
-        memo
       end
     end
   end

lib/graphiti/resource/configuration.rb

@@ -200,7 +200,7 @@ def config
               extra_attributes: {},
               sideloads: {},
               callbacks: {},
-              links: {},
+              links: {}
             }
         end
 

spec/serialization_spec.rb

@@ -1390,7 +1390,7 @@ def classification
 
     context "when specified" do
       before do
-        resource.link :test_link do |model| "#{self.endpoint[:url]}/#{model.id}" end
+        resource.link :test_link do |model| "#{endpoint[:url]}/#{model.id}" end
       end
 
       it "links correctly" do