messages: Update MMonSubscribeAck.h to work without using namespace

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>

diff --git a/src/messages/MMonSubscribeAck.h b/src/messages/MMonSubscribeAck.h
index 087e5069db3c7204b321a2458545009f4567ef6f..3a68c15888837daee0a6f0c7635e08895de9bc13 100644 (file)
--- a/src/messages/MMonSubscribeAck.h
+++ b/src/messages/MMonSubscribeAck.h
@@ -34,11 +34,12 @@ private:
 
 public:
   std::string_view get_type_name() const override { return "mon_subscribe_ack"; }
-  void print(ostream& o) const override {
+  void print(std::ostream& o) const override {
     o << "mon_subscribe_ack(" << interval << "s)";
   }
 
   void decode_payload() override {
+    using ceph::decode;
     auto p = payload.cbegin();
     decode(interval, p);
     decode(fsid, p);