exited_cleanly
if (exited_cleanly(pid, "AuthorizedPrincipalsCommand", command, 0) != 0)
if (exited_cleanly(pid, "AuthorizedKeysCommand", command, 0) != 0)
int exited_cleanly(pid_t, const char *, const char *, int);
if (exited_cleanly(pid, tag, command, 0) != 0)