fprintf(stderr, "my_authenticate: target=%s user=%s group=%s args=%s\n",
target_name ? target_name : "none",
user ? user : "none", group ? group : "none",
fprintf(stderr, "my_authenticate: target=%s user=%s group=%s args=%s\n",
target_name ? target_name : "none",
user ? user : "none", group ? group : "none",