tools: deprecate ndn-tlv-peek and ndn-tlv-poke

refs #2817

Change-Id: Iee198533659320bf2e9219b92195e06a3ba2b25f
diff --git a/tools/ndn-tlv-peek.cpp b/tools/ndn-tlv-peek.cpp
index 5460096..ee37bbc 100644
--- a/tools/ndn-tlv-peek.cpp
+++ b/tools/ndn-tlv-peek.cpp
@@ -1,12 +1,12 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014,  Regents of the University of California,
- *                      Arizona Board of Regents,
- *                      Colorado State University,
- *                      University Pierre & Marie Curie, Sorbonne University,
- *                      Washington University in St. Louis,
- *                      Beijing Institute of Technology,
- *                      The University of Memphis
+ * Copyright (c) 2014-2015,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -21,8 +21,6 @@
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
- *
- * @author Jerald Paul Abraham <jeraldabraham@email.arizona.edu>
  */
 
 #include "version.hpp"
@@ -226,6 +224,9 @@
 int
 main(int argc, char* argv[])
 {
+  std::cerr << "ndn-tlv-peek is deprecated. Use ndnpeek program from ndn-tools repository.\n"
+               "See `man ndn-tlv-peek` for details." << std::endl;
+
   ndntlvpeek::NdnTlvPeek ndnTlvPeek(argv[0]);
   int option;
   while ((option = getopt(argc, argv, "hfrm:M:l:pw:V")) != -1) {