Fix paje trace hierarchy, thanks Luka Stanisic for the fix

src/debug/traces/starpu_fxt.c

@@ -310,7 +310,7 @@ static void handle_new_mem_node(struct fxt_ev_64 *ev, struct starpu_fxt_options
 		poti_CreateContainer(get_event_time_stamp(ev, options), new_memnode_container_alias, "Mm", new_memnode_container_alias, new_memnode_container_name);
 #else
 		fprintf(out_paje_file, "7	%.9f	%smn%"PRIu64"	Mn	%sp	%sMEMNODE%"PRIu64"\n", get_event_time_stamp(ev, options), prefix, ev->param[0], prefix, options->file_prefix, ev->param[0]);
-		fprintf(out_paje_file, "7	%.9f	%smm%"PRIu64"	Mm	%sp	%sMEMMANAGER%"PRIu64"\n", get_event_time_stamp(ev, options), prefix, ev->param[0], prefix, options->file_prefix, ev->param[0]);
+		fprintf(out_paje_file, "7	%.9f	%smm%"PRIu64"	Mm	%smn%"PRIu64"	%sMEMMANAGER%"PRIu64"\n", get_event_time_stamp(ev, options), prefix, ev->param[0], prefix, ev->param[0], options->file_prefix, ev->param[0]);
 #endif
 
 		if (!options->no_bus)