Reduce usage of std::bind()

C++14 lambdas are easier to read, easier to debug,
and can usually be better optimized by the compiler.

Change-Id: I294f275904f91942a8de946fe63e77078a7608a6
diff --git a/tools/ndn-autoconfig-server/program.cpp b/tools/ndn-autoconfig-server/program.cpp
index d0be0d1..21e7857 100644
--- a/tools/ndn-autoconfig-server/program.cpp
+++ b/tools/ndn-autoconfig-server/program.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019,  Regents of the University of California,
+ * Copyright (c) 2014-2021,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -67,7 +67,9 @@
         m_face.put(*data);
       }
     },
-    bind(&Program::handlePrefixRegistrationFailure, this, _1, _2));
+    [this] (auto&&... args) {
+      handlePrefixRegistrationFailure(std::forward<decltype(args)>(args)...);
+    });
 }
 
 void
@@ -84,8 +86,10 @@
   m_dispatcher.addTopPrefix(ROUTABLE_PREFIXES_DATA_PREFIX, false);
 
   m_face.registerPrefix(Name(ROUTABLE_PREFIXES_DATA_PREFIX).append(ROUTABLE_PREFIXES_DATA_SUFFIX),
-                        nullptr,
-                        bind(&Program::handlePrefixRegistrationFailure, this, _1, _2));
+    nullptr,
+    [this] (auto&&... args) {
+      handlePrefixRegistrationFailure(std::forward<decltype(args)>(args)...);
+    });
 }
 
 void