unintended semicolon in if statement (#1217)

Author: rex-schilasky

ecal/core/src/service/ecal_service_client_impl.cpp

@@ -562,7 +562,7 @@ namespace eCAL
                           }
                         };
 
-          if (client->second->async_call_service(request_shared_ptr, response_callback));
+          if (client->second->async_call_service(request_shared_ptr, response_callback))
             at_least_one_service_was_called = true;
         }
       }