Major update to rename ContentObject to Data everywhere.
diff --git a/ndn-cpp/NDN.hpp b/ndn-cpp/NDN.hpp
index 2abb8f2..106431a 100644
--- a/ndn-cpp/NDN.hpp
+++ b/ndn-cpp/NDN.hpp
@@ -35,8 +35,8 @@
/**
* Encode name as an Interest. If interestTemplate is not 0, use its interest selectors.
* Send the interest through the transport, read the entire response and call
- * closure->upcall(UPCALL_CONTENT (or UPCALL_CONTENT_UNVERIFIED),
- * UpcallInfo(this, interest, 0, contentObject)).
+ * closure->upcall(UPCALL_DATA (or UPCALL_DATA_UNVERIFIED),
+ * UpcallInfo(this, interest, 0, data)).
* @param name reference to a Name for the interest. This does not keep a pointer to the Name object.
* @param closure a shared_ptr for the Closure. This uses shared_ptr to take another reference to the object.
* @param interestTemplate if not 0, copy interest selectors from the template. This does not keep a pointer to the Interest object.