{"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, 0, OPT_USERSPACE, 0, 0},
{"all", 0, POPT_ARG_VAL, &opt_pid_all, 1, 0, 0},
{"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
{"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, 0, OPT_USERSPACE, 0, 0},
{"all", 0, POPT_ARG_VAL, &opt_pid_all, 1, 0, 0},
{"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},