DYNSTR_EXTRA_PAD
data->d_size = size + DYNSTR_EXTRA_PAD;
dyn->d_un.d_val = DYNSTR_EXTRA_PAD;
update_ostrtab(ofl->ofl_osdynstr, ofl->ofl_dynstrtab, DYNSTR_EXTRA_PAD);
ofl->ofl_osdynstr->os_outdata->d_size - DYNSTR_EXTRA_PAD - 1) ==