argp_err_exit_status   30 maint/gnulib/lib/argp-eexst.c error_t argp_err_exit_status = EX_USAGE;
argp_err_exit_status 1862 maint/gnulib/lib/argp-help.c             exit (argp_err_exit_status);
argp_err_exit_status  456 maint/gnulib/lib/argp.h extern error_t argp_err_exit_status;