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/daemon/face/udp-factory.cpp b/daemon/face/udp-factory.cpp
index 9eabd42..8f7f77c 100644
--- a/daemon/face/udp-factory.cpp
+++ b/daemon/face/udp-factory.cpp
@@ -434,7 +434,7 @@
     NFD_LOG_DEBUG("Not creating multicast faces on " << netif->getName() << ": no viable IP address");
     // keep an eye on new addresses
     m_netifConns[netif->getIndex()].addrAddConn =
-      netif->onAddressAdded.connect([=] (auto...) { this->applyMcastConfigToNetif(netif); });
+      netif->onAddressAdded.connect([=] (auto&&...) { this->applyMcastConfigToNetif(netif); });
     return {};
   }