daemon: exit with 0 when successful

src/daemon/main.cpp

@@ -287,7 +287,7 @@ int main(int argc, char const * argv[])
 
     MINFO("Moving from main() into the daemonize now.");
 
-    return daemonizer::daemonize(argc, argv, daemonize::t_executor{}, vm);
+    return daemonizer::daemonize(argc, argv, daemonize::t_executor{}, vm) ? 0 : 1;
   }
   catch (std::exception const & ex)
   {