Fix missing semi

didnt do this in a while, wow

src/THeartbeatThread.cpp

@@ -79,7 +79,7 @@ void THeartbeatThread::operator()() {
 
     //SocketIO::Get().SetAuthenticated(isAuth);
 }
-}
+
 std::string THeartbeatThread::GenerateCall() {
     std::stringstream Ret;