fw: move STRATEGY_NAME to getStrategyName static function

This avoids potential problems with static initialization order.

refs #3868

Change-Id: I13f0ff6c51c0a3bd43af7993233ff63a4bca9cf9
diff --git a/daemon/fw/multicast-strategy.cpp b/daemon/fw/multicast-strategy.cpp
index 3d6e8b2..3248684 100644
--- a/daemon/fw/multicast-strategy.cpp
+++ b/daemon/fw/multicast-strategy.cpp
@@ -29,7 +29,6 @@
 namespace nfd {
 namespace fw {
 
-const Name MulticastStrategy::STRATEGY_NAME("ndn:/localhost/nfd/strategy/multicast/%FD%01");
 NFD_REGISTER_STRATEGY(MulticastStrategy);
 
 MulticastStrategy::MulticastStrategy(Forwarder& forwarder, const Name& name)
@@ -37,6 +36,13 @@
 {
 }
 
+const Name&
+MulticastStrategy::getStrategyName()
+{
+  static Name strategyName("/localhost/nfd/strategy/multicast/%FD%01");
+  return strategyName;
+}
+
 void
 MulticastStrategy::afterReceiveInterest(const Face& inFace, const Interest& interest,
                                         const shared_ptr<pit::Entry>& pitEntry)