http://www.freelists.org/post/procps/Scan-results,5
@@ -87,7 +87,7 @@ int main(int argc, char **argv)
if (argc > optind) {
if ((fd = open(argv[optind], 1)) == -1) {
perror(argv[optind]);
perror("tty");
exit(1);
}
The note is not visible to the blocked user.