more detailed report in memory management error path

executer/user/mcexec.c

@@ -1098,7 +1098,7 @@ int main_loop(int fd, int cpu, pthread_mutex_t *lock)
 					if(sig)
 						fprintf(stderr, "Terminate by signal %d\n", sig);
 					else if(term)
-						__dprintf(stderr, "Exit status: %d\n", term);
+						__dprintf("Exit status: %d\n", term);
 				}
 			}