the buffer as necessary, but if NMAX is not GETNLINE_NO_LIMIT
then do not allocate more than NMAX bytes; if the line is longer
than that, read and discard the extra bytes. Stop reading after
the buffer as necessary, but if NMAX is not GETNLINE_NO_LIMIT
then do not allocate more than NMAX bytes; if the line is longer
than that, read and discard the extra bytes. Stop reading after