Add trace output to Datastore spec for Travis debugging

Author: remi Taylor

datastore/sample.rb

@@ -91,6 +91,8 @@ def properties
     t.exclude_from_indexes! "description", true
   end
   # [END properties]
+
+  task
 end
 
 def array_value

datastore/spec/sample_spec.rb

@@ -559,6 +559,9 @@ def delete_accounts
   end
 
   def expect_basic_task task
+    puts "expect_basic_task"
+    puts task
+    puts task.inspect
     expect(task.key.kind).to eq("Task")
     expect(task["type"]).to eq("Personal")
     expect(task["done"]).to be(false)